Which of the following produces more severe burns ? (1) Boiling water (2) Hot water (3) Steam (4) Melting iceberg

Which of the following produces more severe burns ? (1) Boiling water (2) Hot water (3) Steam (4) Melting iceberg
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Steam
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Which of the following produces more severe burns? (1) Boiling water (2) Hot water (3) Steam (4) Melting Iceberg

Description : Which of the following produces more severe burns? (1) Boiling water (2) Hot water (3) Steam (4) Melting Iceberg

Last Answer : (3) Steam Explanation: A burn is an injury to the body's tissue resulting from heat, chemicals, electricity or sunlight. Burns are often classified as first degree (those causing damage to the ... deepest and most severe damage destruction of all layers of the skin and damage to tissues underneath.

Burns caused by steam are much severe than those caused by boiling water because – (1) Steam pierces through the pores of body quickly (2) Steam has latent heat (3) Steam is gas and engulfs the body quickly (4) Temperature of steam is higher

Description : Burns caused by steam are much severe than those caused by boiling water because – (1) Steam pierces through the pores of body quickly (2) Steam has latent heat (3) Steam is gas and engulfs the body quickly (4) Temperature of steam is higher

Last Answer : (2) Steam has latent heat Explanation: When water changes into steam, it absorbs latent heat, and when steam condenses to form water, it gives out an equal amount of latent heat. Bums caused ... boiling water, simply because steam contains more heat (in the form of latent heat) than boiling water.

Burns caused by steam are much severe than those caused by boiling water because (1) Steam pierces through the pores of body quickly (2) Steam has latent heat (3) Steam is gas and engulfs the body quickly (4) Temperature of steam is higher

Description : Burns caused by steam are much severe than those caused by boiling water because (1) Steam pierces through the pores of body quickly (2) Steam has latent heat (3) Steam is gas and engulfs the body quickly (4) Temperature of steam is higher

Last Answer : Steam has latent heat

Burns caused by steam are much more severe than those caused by boiling water because

Description : Burns caused by steam are much more severe than those caused by boiling water because

Last Answer : Steam has latent heat

Why does steam cause more severe burns than boiling water?

Description : Why does steam cause more severe burns than boiling water?

Last Answer : Ans: The amount of heat (latent heat) possessed by steam is much greater than the amount of heat possessed by water at the same temperature. Therefore, steam causes more severe burns than boiling water

Steam at 100°C causes more severe burns than water at 100° C because – (1) steam has no specific heat capacity (2) steam has latent heat of vaporization (3) water has no specific heat capacity (4) water has latent heat of fusion

Description : Steam at 100°C causes more severe burns than water at 100° C because – (1) steam has no specific heat capacity (2) steam has latent heat of vaporization (3) water has no specific heat capacity (4) water has latent heat of fusion

Last Answer : (2) steam has latent heat of vaporization Explanation: It is because steam releases its latent heat as it condenses, which is substantial. The heat of vaporization of steam is over 2000 J per gram. And when it releases that it's then 100 degree water, the same as boiling water.

Steam at 1000C causes more severe burns than water at 100° C because (1) steam has no specific heat capacity (2) steam has latent heat of vaporisation (3) water has no specific heat capacity (4) water has latent heat of fusion

Description : Steam at 1000C causes more severe burns than water at 100° C because (1) steam has no specific heat capacity (2) steam has latent heat of vaporisation (3) water has no specific heat capacity (4) water has latent heat of fusion

Last Answer :  steam has latent heat of vaporisation

31 Scalding with steam is more severe than scalding by boiling water because A. Steam can penetrate the skin B. Steam is at a higher temperature C. Steam contains more energy than boiling water D. Steam is at a higher pressure

Description : 31 Scalding with steam is more severe than scalding by boiling water because A. Steam can penetrate the skin B. Steam is at a higher temperature C. Steam contains more energy than boiling water D. Steam is at a higher pressure

Last Answer : ANSWER: C

Scalding with steam is more severe than scalding by boiling water because (a) steam can penetrate the skin (b) steam is at a higher temperature (c) steam contains more energy than boiling water (d) steam is at a higher pressure

Description : Scalding with steam is more severe than scalding by boiling water because (a) steam can penetrate the skin (b) steam is at a higher temperature (c) steam contains more energy than boiling water (d) steam is at a higher pressure

Last Answer : Ans:(c)

Why are winters more severe in Southern Hemisphere than in Northern Hemisphere? (1) Earth is titled towards the sun in the Northern Hemisphere (2) Northern Hemisphere receives more sunlight (3) Because of more iceberg activity in Southern Hemisphere (4) Southern Hemisphere is less inhabited

Description : Why are winters more severe in Southern Hemisphere than in Northern Hemisphere? (1) Earth is titled towards the sun in the Northern Hemisphere (2) Northern Hemisphere receives more sunlight (3) Because of more iceberg activity in Southern Hemisphere (4) Southern Hemisphere is less inhabited

Last Answer : (1) Earth is titled towards the sun in the Northern Hemisphere Explanation: The winter in the Southern Hemisphere occurs when the Northern hemisphere is tilted more toward the Sun. From the perspective of an ... the Earth, the winter Sun has a lower maximum altitude in the sky than the summer Sun.

Why are winters more severe in Southern Hemisphere than in Northern Hemisphere? (1) Earth is titled towards the sun in the Northern Hemisphere (2) Northern Hemisphere receives more sunlight (3) Because of more iceberg activity in Southern Hemisphere (4) Southern Hemisphere is less inhabited

Description : Why are winters more severe in Southern Hemisphere than in Northern Hemisphere? (1) Earth is titled towards the sun in the Northern Hemisphere (2) Northern Hemisphere receives more sunlight (3) Because of more iceberg activity in Southern Hemisphere (4) Southern Hemisphere is less inhabited

Last Answer : Earth is titled towards the sun in the Northern Hemisphere

A large iceberg melts at the base, but not at the top, because of the reason that (A) Ice at the base contains impurities which lowers its melting point (B) Due to the high pressure at the base, its melting point reduces (C) The iceberg remains in a warmer condition at the base (D) All (A), (B) and (C)

Description : A large iceberg melts at the base, but not at the top, because of the reason that (A) Ice at the base contains impurities which lowers its melting point (B) Due to the high pressure at the base, its melting point ... C) The iceberg remains in a warmer condition at the base (D) All (A), (B) and (C)

Last Answer : (B) Due to the high pressure at the base, its melting point reduces

The branching of alkanes that produces symmetrical structures : (a) raises the boiling point ; raises the melting point (b) raises the boiling point ; lowers the melting point (c) lowers the boiling point ; lowers the melting point (d) lowers the boiling point ; raises the melting point

Description : The branching of alkanes that produces symmetrical structures : (a) raises the boiling point ; raises the melting point (b) raises the boiling point ; lowers the melting point (c) lowers the boiling point ; lowers the melting point (d) lowers the boiling point ; raises the melting point

Last Answer : raises the boiling point ; raises the melting point

At hill stations, the boiling point of water will be – (1) same as at sea level (2) less than that at sea level (3) more than that at sea level (4) equal to the melting point of ice

Description : At hill stations, the boiling point of water will be – (1) same as at sea level (2) less than that at sea level (3) more than that at sea level (4) equal to the melting point of ice

Last Answer : (2) less than that at sea level Explanation: The boiling point is the temperature at which the vapour pressure of the liquid equals the environmental pressure surrounding the liquid. Atmospheric pressure ... The atmospheric pressure at high altitudes like hill station is less than at the sea level.

At hill stations, the boiling point of water will be (1) same as at sea level (2) less than that at sea level (3) more than that at sea level (4) equal to the melting point of ice

Description : At hill stations, the boiling point of water will be (1) same as at sea level (2) less than that at sea level (3) more than that at sea level (4) equal to the melting point of ice 

Last Answer : less than that at sea level

Which of the following situations can be approximated to a steady state heat transfer system? (A) A red hot steel slab (having outside surface temperature as 1300°C) exposed to the atmospheric air at 35°C (B) 10 kg of dry saturated steam at 8 kgf/cm2 flowing through a short length of stainless steel pipe exposed to atmospheric air at 35°C (C) Boiling brine kept in open vessel when the bottom surface temperature of the vessel is maintained constant at 180°C (D) A sub-cooled refrigerant liquid at 8°C flowing at the rate of 6 Kg/minute through a copper pipe exposed to atmospheric air at 35°C

Description : Which of the following situations can be approximated to a steady state heat transfer system? (A) A red hot steel slab (having outside surface temperature as 1300°C) exposed to the atmospheric air at ... flowing at the rate of 6 Kg/minute through a copper pipe exposed to atmospheric air at 35°C

Last Answer : (B) 10 kg of dry saturated steam at 8 kgf/cm2 flowing through a short length of stainless steel pipe exposed to atmospheric air at 35°C

Explain melting point and boiling point with examples.

Description : Explain melting point and boiling point with examples.

Last Answer : The temperature at which an object begins to boil is called the boiling point of that object. For example, water starts boiling at a temperature of 100 degrees. So the boiling point of water is 100 ... water starts melting at a temperature of 0 degrees. So the melting point of water is 0 degrees.

The temperature of boiling water in a steam engine may be high because - (1) there are dissolved substances in water (2) there is low pressure inside the boiler (3) there is high pressure inside the boiler (4) the lire is at very high temperature

Description : The temperature of boiling water in a steam engine may be high because - (1) there are dissolved substances in water (2) there is low pressure inside the boiler (3) there is high pressure inside the boiler (4) the lire is at very high temperature

Last Answer : (3) there is high pressure inside the boiler Explanation: In the boiler of a steam engine, there is a firebox where coal is shoveled into. The coal is kept burning at a very high temperature, and ... reservoir; the steam is then controlled by a slide valve to move into a cylinder to push the piston.

The temperature of boiling water in a steam engine may be high because : (1) there are dissolved substances in water (2) there is low pressure inside the boiler (3) there is high pressure inside the boiler (4) the fire is at very high temperature

Description : The temperature of boiling water in a steam engine may be high because : (1) there are dissolved substances in water (2) there is low pressure inside the boiler (3) there is high pressure inside the boiler (4) the fire is at very high temperature

Last Answer :  there is high pressure inside the boiler

Which of the following is not a property of heavy water? (1) Boiling point of heavy water is lower than that or ordinary water (2) Density of heavy water is higher than that of ordinary water (3) Freezing point of heavy water is higher than that of ordinary water (4) It produces corrosion

Description : Which of the following is not a property of heavy water? (1) Boiling point of heavy water is lower than that or ordinary water (2) Density of heavy water is higher than that of ordinary water (3) Freezing point of heavy water is higher than that of ordinary water (4) It produces corrosion

Last Answer : (1) Boiling point of heavy water is lower than that or ordinary water Explanation: Heavy water, formally called deuterium oxide or 2H90 or D20, is a form of water that contains the hydrogen ... well: for instance heavy water used in CANDLE reactors is 99.75% enriched by hydrogen atom-fraction.

Which of the following is not a property of heavy water ? (1) Boiling point of heavy water is lower than that or ordinary water (2) Density of heavy water is higher than that of ordinary water (3) Freezing point of heavy water is higher than that of ordinary water (4) It produces corrosion

Description : Which of the following is not a property of heavy water ? (1) Boiling point of heavy water is lower than that or ordinary water (2) Density of heavy water is higher than that of ordinary water (3) Freezing point of heavy water is higher than that of ordinary water (4) It produces corrosion

Last Answer : Boiling point of heavy water is lower than that or ordinary water

Lignite is (A) A high rank coal (B) A coking coal (C) Can be used for gasification and steam generation (D) A black banded coal which burns with a non-smoky yellowish flame

Description : Lignite is (A) A high rank coal (B) A coking coal (C) Can be used for gasification and steam generation (D) A black banded coal which burns with a non-smoky yellowish flame

Last Answer : (C) Can be used for gasification and steam generation

A coal having high amount of volatile matter (A) Would require smaller combustion chamber (B) Produces very little of tar and gas on carbonisation (C) Ignites easily and burns with long smoky flame (D) All (A), (B) and (C)

Description : A coal having high amount of volatile matter (A) Would require smaller combustion chamber (B) Produces very little of tar and gas on carbonisation (C) Ignites easily and burns with long smoky flame (D) All (A), (B) and (C)

Last Answer : (D) All (A), (B) and (C)

A coal having high amount of volatile matter (A) Would require smaller combustion chamber (B) Produces very little of tar and gas on carbonisation(C) Ignites easily and burns with long smoky flame(D) All (A), (B) and (C)

Description : A coal having high amount of volatile matter (A) Would require smaller combustion chamber (B) Produces very little of tar and gas on carbonisation (C) Ignites easily and burns with long smoky flame (D) All (A), (B) and (C)

Last Answer : (D) All (A), (B) and (C)

What burns more calories: 90 minute hot yoga class or 45 minute spin class?

Description : What burns more calories: 90 minute hot yoga class or 45 minute spin class?

Last Answer : You can look up the calories burned on exercise on various diet sites. I use myfitnesspal. It’s pretty good. For me 45 min spin is 440 calories and 90 min yoga is 314. I don’t know what hot yoga is though

My husband's legs are burning ? My husband is 29 years old. A lot of it burns one leg. Burns more on hot days. The legs sweat a lot , and the legs become heavy. The left leg hurts all the time. What is the remedy ? ( He has no problem with diabetes or pressure)

Description : My husband's legs are burning ? My husband is 29 years old. A lot of it burns one leg. Burns more on hot days. The legs sweat a lot , and the legs become heavy. The left leg hurts all the time. What is the remedy ? ( He has no problem with diabetes or pressure)

Last Answer : I am giving treatment based on your question , although it would be better to give more details. You can try these medicines by taking ---- " Cap- Pregaba / Gaba-P / Nervalin 25 mg. 1 + 0 + 1 10 days after ... during or after the medicine. Or seek the help of a specialist.

Most covalent compounds (a) Behave like electrolytes in the molten state (b) Have high melting and boiling points (c) Are hard substances because of strong covalent bonds (d) Are more soluble in non-polar solvents than in polar solvents

Description : Most covalent compounds (a) Behave like electrolytes in the molten state (b) Have high melting and boiling points (c) Are hard substances because of strong covalent bonds (d) Are more soluble in non-polar solvents than in polar solvents

Last Answer : Ans:(d)

How many degrees are there between the melting point of ice and boiling point of water?

Description : How many degrees are there between the melting point of ice and boiling point of water?

Last Answer : On the centigrade scale there is 100.On the fahrenheit scale there is 180.

Choose the incorrect statement pertaining to organic compounds (1) They have low melting and boiling points (2) They do not dissolve in water (3) They are not easily combustible (4) They contain mainly carbon and hydrogen

Description : Choose the incorrect statement pertaining to organic compounds (1) They have low melting and boiling points (2) They do not dissolve in water (3) They are not easily combustible (4) They contain mainly carbon and hydrogen

Last Answer : They are not easily combustible

What's the best way to treat burns from hot oil?

Description : What's the best way to treat burns from hot oil?

Last Answer : Sorry to hear it! I’m thinking slather it in aloe vera.

Both white phosphorous as well as red phosphorous (A) Are soluble in CS2 (B) Burns when heated in air (C) Reacts with hot caustic soda solution to give Phosphine (D) All (A), (B), and (C)

Description : Both white phosphorous as well as red phosphorous (A) Are soluble in CS2 (B) Burns when heated in air (C) Reacts with hot caustic soda solution to give Phosphine (D) All (A), (B), and (C)

Last Answer : (B) Burns when heated in air

Why does the temperature of a substance remain constant during its melting point or boiling point? -Maths 9th

Description : Why does the temperature of a substance remain constant during its melting point or boiling point? -Maths 9th

Last Answer : The extra heat supplied to the boiling water is used in the vaporization of a liquid, which is known as the latent heat of vaporization. That's why the temperature of a substance remains constant during its melting or boiling.

Why does the temperature of a substance remain constant during its melting point or boiling point? -Maths 9th

Description : Why does the temperature of a substance remain constant during its melting point or boiling point? -Maths 9th

Last Answer : The temperature of a substance remains constant during melting and boiling points till the completion of melting and boiling. It is because substance makes use of latent heat of fusion ... between particles of liquid to change into vapours during boiling. Therefore, temperature remains constant.

What are melting points and boiling points ? What is melting point and boiling point ?

Description : What are melting points and boiling points ? What is melting point and boiling point ?

Last Answer : Melting point refers to the process of melting a solid into a liquid at a certain temperature. Boiling point is the temperature at which a liquid evaporates. Therefore , the temperature at which a liquid begins to evaporate is called the 'boiling point' of that substance.

The points noted by arrows are melting and boiling points of the metal zinc and magnasium. `Delta G^(0)` as a function of temperature for some reactio

Description : The points noted by arrows are melting and boiling points of the metal zinc and magnasium. `Delta G^(0)` as a function of temperature for some reactio

Last Answer : The points noted by arrows are melting and boiling points of the metal zinc and magnasium. `Delta G^(0)` ... +Zn rarr Mg+ZnO` D. `ZnO+Mg rarrZn+MgO`

The points noted by arrows are melting and boiling points of the metal zinc and magnasium. `Delta G^(0)` as a function of temperature for some reactio

Description : The points noted by arrows are melting and boiling points of the metal zinc and magnasium. `Delta G^(0)` as a function of temperature for some reactio

Last Answer : The points noted by arrows are melting and boiling points of the metal zinc and magnasium. `Delta G^(0)` as a ... gt 500^(@)C " but " lt 1000^(@)C`

The points noted by arrows are melting and boiling points of the metal zinc and magnasium. `Delta G^(0)` as a function of temperature for some reactio

Description : The points noted by arrows are melting and boiling points of the metal zinc and magnasium. `Delta G^(0)` as a function of temperature for some reactio

Last Answer : The points noted by arrows are melting and boiling points of the metal zinc and magnasium. `Delta G^(0)` as a ... C. `500^(@)C` D. `1200^(@)C`

How could you use the physical properties of melting and boiling point to identify a substance?

Description : How could you use the physical properties of melting and boiling point to identify a substance?

Last Answer : The melting point and boiling point of a pure substance are veryspecific numbers; knowing these allows you to narrow down thepossible identity of the substance.

What is nitrogen melting and boiling point?

Description : What is nitrogen melting and boiling point?

Last Answer : Melting point −209.86°C; boiling point −195.8°C

The point at which the solid, liquid and gaseous forms of a substance co-exist is called its (a) boiling point (b) melting point (c) triple point (d) freezing point

Description : The point at which the solid, liquid and gaseous forms of a substance co-exist is called its (a) boiling point (b) melting point (c) triple point (d) freezing point

Last Answer : Ans:(c)

The point at which the solid, liquid and gaseous forms of a substance co-exist is called its (a) Boiling point (b) Melting point (c) Triple point (d) Freezing point

Description : The point at which the solid, liquid and gaseous forms of a substance co-exist is called its (a) Boiling point (b) Melting point (c) Triple point (d) Freezing point

Last Answer : Ans:(c)

The melting and boiling points of ionic solids are (a) High (b) Low (c) Very low (d) Of intermediate range

Description : The melting and boiling points of ionic solids are (a) High (b) Low (c) Very low (d) Of intermediate range

Last Answer : Ans:(a)

Metals have ______. (1) High melting and boiling point (2) Low melting and boiling point (3) High melting and low boiling point (4) Low melting and high boiling point

Description : Metals have ______. (1) High melting and boiling point (2) Low melting and boiling point (3) High melting and low boiling point (4) Low melting and high boiling point

Last Answer : (1) High melting and boiling point

(a) What effect the branching of an alkane has on its melting point? (L-III) (b) Which of the following has highest boiling point?(L-III) (1) 2-methyl pentane. (2) 2, 3-diethyl butane. (3) 2, 2- dimethyl butane.

Description : (a) What effect the branching of an alkane has on its melting point? (L-III) (b) Which of the following has highest boiling point?(L-III) (1) 2-methyl pentane. (2) 2, 3-diethyl butane. (3) 2, 2- dimethyl butane.

Last Answer : Ans.(a) In general conception, as the branching increases packing of the molecules in the crystals becomes less close and have melting point decreases accordingly. (b) As the branching increases, ... attraction decreases and hence the boiling point decreases. So, 2-methyl pentane has highest B.pt.

Ionic compounds have high melting and boiling points because A) less energy is required to break the strong interionic attraction B) large amount of energy is required to break the interionic attraction C) No energy is required D) None of the above

Description : Ionic compounds have high melting and boiling points because A) less energy is required to break the strong interionic attraction B) large amount of energy is required to break the interionic attraction C) No energy is required D) None of the above

Last Answer : B) large amount of energy is required to break the interionic attraction

Which statements about alkenes and alkanes of corresponding chain lengths is true? (I) Alkenes have slightly lower melting points than alkanes (II) Alkenes have slightly higher melting points than alkanes (III) Alkenes have higher boiling points than alkanes (IV) Alkenes have lower boiling points than alkanes (a) I and III (b) II and IV (c) I and IV (d) II and III

Description : Which statements about alkenes and alkanes of corresponding chain lengths is true? (I) Alkenes have slightly lower melting points than alkanes (II) Alkenes have slightly higher melting points than alkanes (III) Alkenes have higher boiling ... (a) I and III (b) II and IV (c) I and IV (d) II and III

Last Answer : I and III

As the molecular weight of alkanes increases, how do the boiling point and melting point change? (a) boiling point increases ; melting point increases. (b) boiling point increases ; melting point increases. (c) boiling point increases ; melting point decreases (d) boiling point increases ; melting point increases sequentially for alkanes over four carbons.

Description : As the molecular weight of alkanes increases, how do the boiling point and melting point change? (a) boiling point increases ; melting point increases. (b) boiling point increases ; ... decreases (d) boiling point increases ; melting point increases sequentially for alkanes over four carbons.

Last Answer : boiling point increases ; melting point increases sequentially for alkanes over four carbons.

Which of the following is not true of enantiomers? (a) They have the same melting point. (b) They have the same boiling point. (c) They have the same density. (d) They have the same specific rotation.

Description : Which of the following is not true of enantiomers? (a) They have the same melting point. (b) They have the same boiling point. (c) They have the same density. (d) They have the same specific rotation.

Last Answer : They have the same specific rotation.

Which of the following decreases with increase in pressure? (A) Melting point of ice (B) Melting point of wax (C) Boiling point of liquids (D) None of these

Description : Which of the following decreases with increase in pressure? (A) Melting point of ice (B) Melting point of wax (C) Boiling point of liquids (D) None of these

Last Answer : (A) Melting point of ice

Define the term melting, boiling, evaporation, condensation, freezing.

Description : Define the term melting, boiling, evaporation, condensation, freezing.

Last Answer : ∗ Melting:- The temperature at which things melt is called melting. ∗ Boiling:- The temperature at which liquid things boil is called boiling point. ∗ Evaporation:- When water is heated, it changes into ... . ∗ Freezing. When water is cooled, it freezes into form of ice. This is called freezing.