When lake starts freezing the formation of the ice will start first at which point?

When lake starts freezing the formation of the ice will start first at which
point?
by

1 Answer

Answer :

Top
by

Related questions

When lake starts freezing the formation of the ice will start first at which point? -Do You Know?

Description : When lake starts freezing the formation of the ice will start first at which point? -Do You Know?

Last Answer : This process continues until all the water in the lake is at 4° C, when the density of water is at its maximum. With further cooling (and without mechanical mixing) a stable, lighter layer of water forms ... As this layer cools to its freezing point, ice begins to form on the surface of the lake."

A lake starts freezing because of the cold atmosphere, It will first freeze A. At the bottom B. In the middle part C. At the top surface D. Uniformly throughout the water body

Description : A lake starts freezing because of the cold atmosphere, It will first freeze A. At the bottom B. In the middle part C. At the top surface D. Uniformly throughout the water body

Last Answer : ANSWER: C

A lake starts freezing because of the cold atmosphere. It will first freeze A. At the bottom B. ln the middle pan C. At the top surface (Answer) D. Uniformly throughout the water body

Description : A lake starts freezing because of the cold atmosphere. It will first freeze A. At the bottom B. ln the middle pan C. At the top surface (Answer) D. Uniformly throughout the water body

Last Answer : C. At the top surface (Answer)

(2) stabilise the colloid and prevent crystallisation Explanation: Gelatine, being a colloid, has the property of preventing crystallization. In ice lollies and icecream this is demonstrated by the formation of a very fine crystal structure on freezing. This goes much further in that gelatine stabilized icecream does not become grainy or sandy due to the slow crystallisation of lactose with time.

Description : (2) stabilise the colloid and prevent crystallisation Explanation: Gelatine, being a colloid, has the property of preventing crystallization. In ice lollies and icecream this is demonstrated by the formation ... does not become grainy or sandy due to the slow crystallisation of lactose with time.

Last Answer : Glycol is added to aviation gasoline because it - (1) reduces evaporation of petrol (2) increases efficiency of petrol (3) prevents freezing of petrol (4) reduces consumption of petrol

How many joules of heat are necessary to melt 500 g of ice at it's freezing point?

Description : How many joules of heat are necessary to melt 500 g of ice at it's freezing point?

Last Answer : Heat required to melt 1 g of ice at 0°C is approximately 80 cal . This is also called latent heat of fusion of ice.

What is the temperature when water and vapor are in equilibrium with the atmospheric pressure?  a. Ice point  b. Steam point  c. Critical point  d. Freezing point

Description : What is the temperature when water and vapor are in equilibrium with the atmospheric pressure?  a. Ice point  b. Steam point  c. Critical point  d. Freezing point

Last Answer : Steam point

What is the temperature when water and vapor are in the equilibrium with the atmospheric pressure?  a. Ice point  b. Steam point  c. Critical point  d. Freezing point

Description : What is the temperature when water and vapor are in the equilibrium with the atmospheric pressure?  a. Ice point  b. Steam point  c. Critical point  d. Freezing point

Last Answer : Steam point

Formation of snow occurs if the cloud temperature is (A) Just above the freezing point (B) At the freezing point (C) Below the freezing point (D) None of these

Description : Formation of snow occurs if the cloud temperature is (A) Just above the freezing point (B) At the freezing point (C) Below the freezing point (D) None of these

Last Answer : Answer: Option C

How is it that the first 35 degree day after summer can cause me to feel like I'm freezing to death, but 35 degrees after well-below freezing weather makes me feel like putting on my shorts and a t-shirt and going to the lake?

Description : How is it that the first 35 degree day after summer can cause me to feel like I'm freezing to death, but 35 degrees after well-below freezing weather makes me feel like putting on my shorts and a t-shirt and going to the lake?

Last Answer : It is very subjective. I was raised in Colorado, and if the sun was shining, it was warm, despite the actual temperature, but since I moved to California, where the sun shines all the time (hehe) I need a coat unless it’s over 70 degrees.

A Mixture of dry air and water,the formation of fog starts when, A. air temperature is equal to the dew point temperature B. air temperature is greater than the dew point temperature C. both a. and b. D. none of the above

Description : A Mixture of dry air and water,the formation of fog starts when, A. air temperature is equal to the dew point temperature B. air temperature is greater than the dew point temperature C. both a. and b. D. none of the above

Last Answer : ANSWER : A

when do I prune a rose bush that got caught in ice and freezing temp

Description : when do I prune a rose bush that got caught in ice and freezing temp

Last Answer : Need Answer

How would you argue that liquid water is lighter than solid ice, when both are compared in the same full 16oz container before and after freezing?

Description : How would you argue that liquid water is lighter than solid ice, when both are compared in the same full 16oz container before and after freezing?

Last Answer : It’s DENSER

If water contracts on freezing, which of the following would happen? (a) Icebergs will completely float on the surface of water (b) Ice would become more dense (c) Lakes would freeze from top to bottom (d) Rocks will crack due to freezing of internal water

Description : If water contracts on freezing, which of the following would happen? (a) Icebergs will completely float on the surface of water (b) Ice would become more dense (c) Lakes would freeze from top to bottom (d) Rocks will crack due to freezing of internal water

Last Answer : Ans:(b)

Pipelines in cold countries often burst in winter, because – (1) Water freezes and expands in its volume (2) Temperature of ice is less than that of water (3) Pipelines contract in their volume (4) Pipelines expand due to freezing

Description : Pipelines in cold countries often burst in winter, because – (1) Water freezes and expands in its volume (2) Temperature of ice is less than that of water (3) Pipelines contract in their volume (4) Pipelines expand due to freezing

Last Answer : (1) Water freezes and expands in its volume Explanation: Water expands on freezing. When liquid water is cooled, it contracts like one would expect until a temperature of approximately 4 degrees ... it expands by approximately 9%. The fact that water expands upon freezing causes icebergs to float.

Ice and salt mixture is used as a freezing agent by manual ice-cream makers.

Description : Ice and salt mixture is used as a freezing agent by manual ice-cream makers.

Last Answer : Ans: In manual ice-cream making a mixture of salt and ice is always used because salt has capacity to reduce the temperature of ice by decreasing its freezing point. That’s why ice and salt mixture is used as freezing agent in manual ice cream making.

Give scientific reasons (in not more than four lines each) for the following: (i) Meat takes longer to cook on the mountains (ii) Water remains cool in earthen pitchers (iii) Ice and salt mixture is used as a freezing agent by manual ice cream makers. (iv) It is not advisable to sleep under trees during the night. (v) Greenhouse operators paint their glass roofs white in summer.

Description : Give scientific reasons (in not more than four lines each) for the following: (i) Meat takes longer to cook on the mountains (ii) Water remains cool in earthen pitchers (iii) Ice and salt ... to sleep under trees during the night. (v) Greenhouse operators paint their glass roofs white in summer.

Last Answer : (i) Meat takes longer to cook on the mountains: The atmospheric pressure decreases as the altitude increases. The boiling point of water is 100 c at standard atmospheric pressure. At the mountains this ... of light to a maximum. And therefore white colour is painted on the roofs in the summer.

Pipelines in cold countries often burst in winter, because (1) water freezes and expands in its volume (2) temperature of ice is less than that of water (3) pipelines contract in their volume (4) pipelines expand due to freezing

Description : Pipelines in cold countries often burst in winter, because (1) water freezes and expands in its volume (2) temperature of ice is less than that of water (3) pipelines contract in their volume (4) pipelines expand due to freezing

Last Answer : water freezes and expands in its volume

Water vapour beyond the dew point result in A. Precipitation B. Hailstorm C. Condensation D. Formation of ice

Description : Water vapour beyond the dew point result in A. Precipitation B. Hailstorm C. Condensation D. Formation of ice

Last Answer : ANSWER: C

Water vapour beyond the dew point result in-----? A. Precipitation B. Hailstorm C. Condensation (Answer) D. Formation of ice

Description : Water vapour beyond the dew point result in-----? A. Precipitation B. Hailstorm C. Condensation (Answer) D. Formation of ice

Last Answer : C. Condensation (Answer)

Why does ice form on the top of a lake? -Geography

Description : Why does ice form on the top of a lake? -Geography

Last Answer : ice floats on top water because ice is less dense than water

Wular lake of Kashmir is a : [IAS 2003] (a) Ox- bow lake (b) Lake formed by blocking of ice (c) Lake formed by terminal morainic dam (d) Lake formed by deposition of silt

Description : Wular lake of Kashmir is a : [IAS 2003] (a) Ox- bow lake (b) Lake formed by blocking of ice (c) Lake formed by terminal morainic dam (d) Lake formed by deposition of silt

Last Answer : Ans: (c)

Fish can survive inside a frozen lake because (a) fish are warm blooded animals (b) fish hibernate in ice (c) water near the bottom does not freeze (d) ice is a good conductor of heat

Description : Fish can survive inside a frozen lake because (a) fish are warm blooded animals (b) fish hibernate in ice (c) water near the bottom does not freeze (d) ice is a good conductor of heat

Last Answer : Ans:(c)

The temperature of the top of a frozen lake is – 15°C. What is the temperature of the water in the lake in contact with the ice layer? (a) 0°C (b) 4°C (c) –15°C (d) –7.5°C

Description : The temperature of the top of a frozen lake is – 15°C. What is the temperature of the water in the lake in contact with the ice layer? (a) 0°C (b) 4°C (c) –15°C (d) –7.5°C

Last Answer : Ans:(a)

An ice skater is spinning like a top on a frozen lake. She raises her arms from their initial horizontal position to a vertical position over her head. The skater will experience an increase in angular velocity due to what physical law?

Description : An ice skater is spinning like a top on a frozen lake. She raises her arms from their initial horizontal position to a vertical position over her head. The skater will experience an increase in angular velocity due to what physical law?

Last Answer : ANSWER: LAW OF CONSERVATION OF ANGULAR MOMENTUM

Formation of archenteron starts in

Description : Formation of archenteron starts in

Last Answer : Formation of archenteron starts in A. Morula B. Blastula C. Early gastrula D. Early neurula.

During the carbonisation of coal (A) All tar is evolved at < 600°C (B) Evolution of H2 and formation of methane and aromatics occur at > 700°C (C) Hard semi-coke starts shrinking at 600°C (D) All (A), (B) and (C)

Description : During the carbonisation of coal (A) All tar is evolved at < 600°C (B) Evolution of H2 and formation of methane and aromatics occur at > 700°C (C) Hard semi-coke starts shrinking at 600°C (D) All (A), (B) and (C)

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

Which year’s Earthquake resulted in the formation of Reel Foot Lake?

Description : Which year’s Earthquake resulted in the formation of Reel Foot Lake?

Last Answer : 1811

A rift valley is formed mainly due to: [NDA 2003] (a) forces of tension in the earth's crust (b) the subsidence of the floor of a river valley (c) the valley formed after the formation of fold mountains (d) the deepening of a valley by ice action

Description : A rift valley is formed mainly due to: [NDA 2003] (a) forces of tension in the earth's crust (b) the subsidence of the floor of a river valley (c) the valley formed after the formation of fold mountains (d) the deepening of a valley by ice action

Last Answer : Ans: (b)

When two ice cubes are pressed together, they join to form one cube. Which one of the following helps to hold them together? (1) Hydrogen bond formation (2) Vander waals forces (3) Covalent attraction (4) Dipole interaction

Description : When two ice cubes are pressed together, they join to form one cube. Which one of the following helps to hold them together? (1) Hydrogen bond formation (2) Vander waals forces (3) Covalent attraction (4) Dipole interaction

Last Answer : (1) Hydrogen bond formation Explanation: When two ice cubes are pressed together, they join to form one cube due to hydrogen bond.

Impect of green house effect is: (A)Global warming (B) Ice melting (C) Sea formation (D) Sea level rise

Description : Impect of green house effect is: (A)Global warming (B) Ice melting (C) Sea formation (D) Sea level rise

Last Answer : (A)Global warming

When two ice cubes are pressed together, they join to form one cube. Which one of the following helps to hold them together? (1) Hydrogen bond formation (2) Vander waals forces (3) Covalent attraction (4) Dipole interaction

Description : When two ice cubes are pressed together, they join to form one cube. Which one of the following helps to hold them together? (1) Hydrogen bond formation (2) Vander waals forces (3) Covalent attraction (4) Dipole interaction

Last Answer : Hydrogen bond formation

Twelve flags stand equidistant along the track at the stadium. The runners start at the first flag. A runner reaches the eighth flag 8 seconds after he starts. If he runs at an even speed, how many seconds does he need altogether to reach the twelfth flag? -Riddles

Description : Twelve flags stand equidistant along the track at the stadium. The runners start at the first flag. A runner reaches the eighth flag 8 seconds after he starts. If he runs at an even speed, how many seconds does he need altogether to reach the twelfth flag? -Riddles

Last Answer : Not 12 seconds. There are 7 segments from the first flag tot the eighth, and 11 from the first to the twelfth. He runs each segment in 8/7 seconds; therefore, 11 segments take 88/7= 12 4/7 seconds.

What is the freezing point of water ?

Description : What is the freezing point of water ?

Last Answer : The freezing point of water is 0 degree Celsius.

Are freezing point and melting point same with respect to change of state ? Comment.

Description : Are freezing point and melting point same with respect to change of state ? Comment.

Last Answer : Are freezing point and melting point same with respect to change of state ? Comment.

What is methanol is freezing point?

Description : What is methanol is freezing point?

Last Answer : Methanol will freeze at -97 degrees celcius.

What is the freezing point in Celsius?

Description : What is the freezing point in Celsius?

Last Answer : The freeze point of water? 0 degrees.

What is the freezing point for milk?

Description : What is the freezing point for milk?

Last Answer : As milk is mostly water its freezing point is almost the same asthe freezing point for water (it is a bit lower, but notsignificantly so). Approximately between -0.75C to -0.25C.

What would the final freezing point of water be if 3 mol of sugar were added to 1 kg of water kf1.86 c molkg for water and I 1 for sugar?

Description : What would the final freezing point of water be if 3 mol of sugar were added to 1 kg of water kf1.86 c molkg for water and I 1 for sugar?

Last Answer : Feel Free to Answer

What is the difference between the melting and freezing point?

Description : What is the difference between the melting and freezing point?

Last Answer : Freezing point is the point where a liquid turns into a solid.Melting point is the point where a solid turns into a liquid.

What is the molar mass of haemocyanin and the freezing point of the solution when an aqueous solution is prepared by dissolving 1.5 grams of haemocyanin a protein obtained from crabs in 0.25 litres of?

Description : What is the molar mass of haemocyanin and the freezing point of the solution when an aqueous solution is prepared by dissolving 1.5 grams of haemocyanin a protein obtained from crabs in 0.25 litres of?

Last Answer : Haemocyanins are a group of proteins.

Which of the following refrigerants has lowest freezing point (a) Freon-12 (b) NH3 (c) CO2 (d) Freon-22

Description : Which of the following refrigerants has lowest freezing point (a) Freon-12 (b) NH3 (c) CO2 (d) Freon-22

Last Answer : Ans: d

When water is filled in a bottle and is allowed to freeze, the bottle breaks because _____? A. Water expands on freezing B. Bottle contracts at freezing point C. Temperature outside the bottle is less than that inside the bottle D. None of them

Description : When water is filled in a bottle and is allowed to freeze, the bottle breaks because _____? A. Water expands on freezing B. Bottle contracts at freezing point C. Temperature outside the bottle is less than that inside the bottle D. None of them

Last Answer : ANSWER: A

In cold countries alcohol is preferred to mercury as a thermometric liquid because (a) alcohol is a better conductor of heat (b) alcohol can be coloured and its level seen easily (c) alcohol has a lower freezing point than mercury (d) alcohol is cheaper than mercury

Description : In cold countries alcohol is preferred to mercury as a thermometric liquid because (a) alcohol is a better conductor of heat (b) alcohol can be coloured and its level seen easily (c) alcohol has a lower freezing point than mercury (d) alcohol is cheaper than mercury

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)

Tetraethyl lead (TEL) is added to petrol to (a) prevent its freezing (b) increase its boiling point (c) increase its flash point (d) increase its anti-knocking rating

Description : Tetraethyl lead (TEL) is added to petrol to (a) prevent its freezing (b) increase its boiling point (c) increase its flash point (d) increase its anti-knocking rating

Last Answer : Ans:(d)

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)

(3) prevents freezing of petrol Explanation: Ethylene glycol (IUPAC name: ethane-1,2-diol) is an organic compound widely used as an automotive antifreeze and a precursor to polymers. In its pure form, it is an odorless, colourless, syrupy, sweettasting liquid. Ethylene glycol is toxic, and ingestion can result in death. Due to its low freezing point ethylene glycol resists freezing. A mixture of 60% ethylene glycol and 40% water freezes at -45 degree C (- 49 degree F).

Description : (3) prevents freezing of petrol Explanation: Ethylene glycol (IUPAC name: ethane-1,2-diol) is an organic compound widely used as an automotive antifreeze and a precursor to polymers. In its pure form, it is ... A mixture of 60% ethylene glycol and 40% water freezes at -45 degree C (- 49 degree F).

Last Answer : Rust is - (1) A mixture of Fe₂O₃ and Fe(OH) ₂ (2) A mixture of FeO and Fe(OH)₂ (3) FeO only (4) A mixture of Fe₂O₃, 3H₂O and FeO

The freezing point of fresh water is - (1) 0°C (2) 4°C (3) 3°C (4) 5 C

Description : The freezing point of fresh water is - (1) 0°C (2) 4°C (3) 3°C (4) 5 C

Last Answer : (1) 0°C Explanation: Ocean water freezes just like freshwater, but at lower temperatures. Fresh water freezes at 32 degrees Fahrenheit but seawater freezes at about 28.4 degrees Fahrenheit, because of the salt in it.

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.

The freezing point of fresh water is - (1) 4°C (2) 3°C (3) 5°C (4) 0°C

Description : The freezing point of fresh water is - (1) 4°C (2) 3°C (3) 5°C (4) 0°C

Last Answer : (4) 0°C Explanation: The freezing point of water is the temperature at which water changes phase from a liquid to a solid. Under normal conditions, ordinary water freezes at 0°C, or 32°F. ... or if there are impurities present in the water which could cause freezing point depression to occur.