Glass is a (1) superheated solid (2) supercooled liquid (3) supercooled gas (4) superheated liquid

Glass is a (1) superheated solid (2) supercooled liquid (3) supercooled gas (4) superheated liquid
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 supercooled liquid
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Glass is a – (1) superheated solid (2) supercooled liquid (3) supercooled gas (4) superheated liquid

Description : Glass is a – (1) superheated solid (2) supercooled liquid (3) supercooled gas (4) superheated liquid

Last Answer : (2) supercooled liquid Explanation: Glass is an amorphous (noncrystalline) solid material. Glasses are typically brittle and optically transparent. The standard definition of a glass (or vitreous solid) is ... structure of a glass exists in a meta-stable state with respect to its crystalline form.

Glass is a – (1) pure solid (2) supercooled liquid (3) gel (4) polymer

Description : Glass is a – (1) pure solid (2) supercooled liquid (3) gel (4) polymer

Last Answer : (2) supercooled liquid Explanation: Glass is an amorphous (noncrystalline) solid material. Glasses are typically brittle and optically transparent. The standard definition of a glass (or vitreous solid ... is often used to describe any amorphous solid that exhibits a glass transition temperature Tg.

Which of the following is a supercooled liquid? (1) Ice Cream (2) Teflon (3) Glass (4) Mercury

Description : Which of the following is a supercooled liquid? (1) Ice Cream (2) Teflon (3) Glass (4) Mercury

Last Answer : (3) Glass Explanation: Most of us think as glass as a solid material, but it is actually a super cooled liquid. Molecular units have a disordered arrangement yet still have sufficient ... Middle East, approximately during the third millennium BC. Early uses were primarily for vessels or decoration.

Which of the following is a supercooled liquid ? (1) Ice Cream (2) Teflon (3) Glass (4) Mercury

Description : Which of the following is a supercooled liquid ? (1) Ice Cream (2) Teflon (3) Glass (4) Mercury

Last Answer : Glass

Ordinary glass is not a/an (A) Amorphous isotropic material (B) Supercooled liquid (C) Material with sharp definite melting point (D) Electrical insulator

Description : Ordinary glass is not a/an (A) Amorphous isotropic material (B) Supercooled liquid (C) Material with sharp definite melting point (D) Electrical insulator

Last Answer : (C) Material with sharp definite melting point

Which is NOT a correct statement?  A. A superheated vapor will not condense when small amount of heat re removed  B. An ideal gas is a gas that is not a superheated vapor  C. A saturated liquid can absorb as much heat as it can without vaporizing  D. Water at 1 atm and room temperature is subcooled

Description : Which is NOT a correct statement?  A. A superheated vapor will not condense when small amount of heat re removed  B. An ideal gas is a gas that is not a superheated vapor  C. A saturated ... absorb as much heat as it can without vaporizing  D. Water at 1 atm and room temperature is subcooled

Last Answer : An ideal gas is a gas that is not a superheated vapor

Type of lasers that uses a mixture of helium and neon enclosed in glass tube. ∙ A. gas lasers ∙ B. solid lasers ∙ C. semiconductor lasers ∙ D. liquid lasers

Description : Type of lasers that uses a mixture of helium and neon enclosed in glass tube. ∙ A. gas lasers ∙ B. solid lasers ∙ C. semiconductor lasers ∙ D. liquid lasers

Last Answer : A. gas lasers

Steam undergoes isentropic expansion in a turbine from 5000 kPa and 400°C (entropy = 6.65 kJ/kg K) to 150 kPa) (entropy of saturated liquid = 1.4336 kJ/kg. K, entropy of saturated vapour = 7.2234 kJ/kg. K) The exit condition of steam is (A) Superheated vapour (B) Partially condensed vapour with quality of 0.9 (C) Saturated vapour (D) Partially condensed vapour with quality of 0.1

Description : Steam undergoes isentropic expansion in a turbine from 5000 kPa and 400°C (entropy = 6.65 kJ/kg K) to 150 kPa) (entropy of saturated liquid = 1.4336 kJ/kg. K, entropy of saturated vapour = 7.2234 ... vapour with quality of 0.9 (C) Saturated vapour (D) Partially condensed vapour with quality of 0.1

Last Answer : (A) Superheated vapour

_________________ is a combination of saturated vapor and saturated liquid.  a) Vapor  b) Saturated Vapor  c) Superheated Vapor  d) Wet Vapor

Description : _________________ is a combination of saturated vapor and saturated liquid.  a) Vapor  b) Saturated Vapor  c) Superheated Vapor  d) Wet Vapor

Last Answer : Wet Vapor

_________________ is the name given to a gaseous phase that is in contact with the liquid phase, or that is in the vicinity of a state where some of it might be condensed.  a) Vapor  b) Saturated Vapor  c) Superheated Vapor  d) Wet Vapor

Description : _________________ is the name given to a gaseous phase that is in contact with the liquid phase, or that is in the vicinity of a state where some of it might be condensed.  a) Vapor  b) Saturated Vapor  c) Superheated Vapor  d) Wet Vapor

Last Answer : Vapor

A liquid that is about to vaporize is called ______ liquid.  A. Saturated  B. Compressed or subcooled  C. Superheated  D. Unsaturated

Description : A liquid that is about to vaporize is called ______ liquid.  A. Saturated  B. Compressed or subcooled  C. Superheated  D. Unsaturated

Last Answer : Saturated

When water exists in the liquid phase and is not about to vaporize, it is considered as _____liquid.  A. Saturated  B. Compressed or subcooled  C. Superheated  D. Unsaturated

Description : When water exists in the liquid phase and is not about to vaporize, it is considered as _____liquid.  A. Saturated  B. Compressed or subcooled  C. Superheated  D. Unsaturated

Last Answer : Compressed or subcooled

Glass is - (1) Super cooled liquid (2) Crystalline solid (3) Liquid crystal (4) None of these

Description : Glass is - (1) Super cooled liquid (2) Crystalline solid (3) Liquid crystal (4) None of these

Last Answer : (1) Super cooled liquid Explanation: Glass is sometimes called a Super cooled liquid because it does not form a crystalline structure, but instead forms an amorphous solid that allows molecules in the material to continue to move.

Two aircrafts, one with a sharp wing profile (S) and the other with a thick profile (T), are flying through the same cloud with the same true airspeed. The cloud consists of small supercooled droplets. Which of the following statements is most correct concerning ice accretion? a. Aircraft T experiences more icing than S b. Aircraft S and T experience the same amount of icing c. Neither of the aircrafts accumulate ice due to the small size of droplets d. Aircraft S experiences more icing than T

Description : Two aircrafts, one with a sharp wing profile (S) and the other with a thick profile (T), are flying  through the same cloud with the same true airspeed. The cloud consists of small  ... aircrafts accumulate ice due to the small size of droplets  d. Aircraft S experiences more icing than T

Last Answer : d. Aircraft S experiences more icing than T

Two aircrafts, one with a sharp wing profile (S) and the other with a thick profile (T), are flying through the same cloud with the same true airspeed. The cloud consists of small supercooled droplets. Which of the following statements is most correct concerning ice accretion? a. Aircraft T experiences more icing than S b. Aircraft S and T experience the same amount of icing c. Neither of the aircrafts accumulate ice due to the small size of droplets d. Aircraft S experiences more icing than T

Description : Two aircrafts, one with a sharp wing profile (S) and the other with a thick profile (T), are flying through the same cloud with the same true airspeed. The cloud consists of small ... aircrafts accumulate ice due to the small size of droplets d. Aircraft S experiences more icing than T

Last Answer : d. Aircraft S experiences more icing than T

Whether superheated steam can be treated like ideal gas ?

Description : Whether superheated steam can be treated like ideal gas ?

Last Answer : Yes.

Which of the following approaches the ideal gas behaviour most closely? (A) Wet steam (B) Saturated steam (C) Superheated steam (D) Saturated water

Description : Which of the following approaches the ideal gas behaviour most closely? (A) Wet steam (B) Saturated steam (C) Superheated steam (D) Saturated water

Last Answer : Option C

For which of the following substances, the internal energy and enthalpy are the functions of temperature only  (a) any gas  (b) saturated steam  (c) water  (d) perfect gas  (e) superheated steam.

Description : For which of the following substances, the internal energy and enthalpy are the functions of temperature only  (a) any gas  (b) saturated steam  (c) water  (d) perfect gas  (e) superheated steam.

Last Answer : Answer : d

For which of the following substances, the gas laws can be used with minimum error  (a) dry steam  (b) wet steam  (c) saturated steam  (d) superheated steam  (e) steam at atmospheric pressure.

Description : For which of the following substances, the gas laws can be used with minimum error  (a) dry steam  (b) wet steam  (c) saturated steam  (d) superheated steam  (e) steam at atmospheric pressure.

Last Answer : Answer : d

Superheated vapour behaves  (a) exactly as gas  (b) as steam  (c) as ordinary vapour  (d) approximately as a gas  (e) as average of gas and vapour.

Description : Superheated vapour behaves  (a) exactly as gas  (b) as steam  (c) as ordinary vapour  (d) approximately as a gas  (e) as average of gas and vapour.

Last Answer : Answer : d

How is glass a liquid, if it looks and feels like a solid?

Description : How is glass a liquid, if it looks and feels like a solid?

Last Answer : Doesn’t quite answer your question, but http://atlasobscura.com/place/pitch-drop-experiment

The absolute zero is a temperature at which ______. (1) molecular motion in a gas would cease (2) water freezes (3) all gases become liquid (4) all gases become solid

Description : The absolute zero is a temperature at which ______. (1) molecular motion in a gas would cease (2) water freezes (3) all gases become liquid (4) all gases become solid

Last Answer : (1) molecular motion in a gas would cease Explanation: Absolute zero is the lowest possible temperature where nothing could be colder and no heat energy remains in a substance.

(4) Water drops in a dispersion medium of air Explanation: A colloid is a substance microscopically dispersed evenly throughout another substance. A colloidal system consists of two separate phases: a dispersed phase (or internal phase) and a continuous phase (or dispersion medium) in which the colloid is dispersed. A colloidal system may be solid, liquid, or gas. Cloud is a colloidal dispersion of Water drops in a dispersion medium of air.

Description : (4) Water drops in a dispersion medium of air Explanation: A colloid is a substance microscopically dispersed evenly throughout another substance. A colloidal system consists of two separate phases: a dispersed ... or gas. Cloud is a colloidal dispersion of Water drops in a dispersion medium of air.

Last Answer : Conduction band electrons have more mobility than holes because they – (1) are lighter (2) experience collision less frequently (3) have negative charge (4) need less energy to move them

(2) Fat is dispersed in water Explanation: A colloid is a substance microscopically dispersed evenly throughout another substance. A colloidal system consists of two separate phases: a dispersed phase (or internal phase) and a continuous phase (or dispersion medium) in which the colloid is dispersed. A colloidal system may be solid, liquid, or gas. Milk is an emulsified colloid of liquid butterfat globules dispersed within a water-based solution.

Description : (2) Fat is dispersed in water Explanation: A colloid is a substance microscopically dispersed evenly throughout another substance. A colloidal system consists of two separate phases: a dispersed ... Milk is an emulsified colloid of liquid butterfat globules dispersed within a water-based solution.

Last Answer : The presence of ozone in the stratosphere is responsible for – (1) increasing the average global temperature in recent years (2) higher rate of photosynthesis (3) checking the penetration of ultra-violet rays to the earth (4) supplying oxygen for people travelling in jets

(2) Fat is dispersed in water Explanation: A colloid is a substance microscopically dispersed evenly throughout another substance. A colloidal system consists of two separate phases: a dispersed phase (or internal phase) and a continuous phase (or dispersion medium) in which the colloid is dispersed. A colloidal system may be solid, liquid, or gas. Milk is an emulsified colloid of liquid butterfat globules dispersed within a water-based solution.

Description : (2) Fat is dispersed in water Explanation: A colloid is a substance microscopically dispersed evenly throughout another substance. A colloidal system consists of two separate phases: a dispersed ... Milk is an emulsified colloid of liquid butterfat globules dispersed within a water-based solution.

Last Answer : The presence of ozone in the stratosphere is responsible for – (1) increasing the average global temperature in recent years (2) higher rate of photosynthesis (3) checking the penetration of ultra-violet rays to the earth (4) supplying oxygen for people travelling in jets

An emulsion is a colloidal solution of - (1) Liquid in liquid (2) Solid in liquid (3) Gas in solid (4) Solid in Solid

Description : An emulsion is a colloidal solution of - (1) Liquid in liquid (2) Solid in liquid (3) Gas in solid (4) Solid in Solid

Last Answer : (1) Liquid in liquid Explanation: An emulsion is a mixture of two or more liquids that are normally immiscible (unmixable or unblendable). Emulsions are part of a more general class ... of emulsions include vinaigrettes, homogenized milk, mayonnaise, and some cutting fluids for metal working.

Bromine is- (1) Colorless gas insoluble in water (2) A highly inflammable gas (3) A Black solid (4) A red liquid

Description : Bromine is- (1) Colorless gas insoluble in water (2) A highly inflammable gas (3) A Black solid (4) A red liquid

Last Answer : (4) A red liquid Explanation: Bromine is a chemical element with symbol Br and atomic number 35. It is the third-lightest halogen, and is a fuming liquid with a deep red color. At room temperature, Bromine evaporates readily to form a red to amber colored gas.

Smoke is formed due to – (1) Solid dispersed in gas (2) Solid dispersed in liquid (3) gas dispersed in solid (4) gas dispersed in gas

Description : Smoke is formed due to – (1) Solid dispersed in gas (2) Solid dispersed in liquid (3) gas dispersed in solid (4) gas dispersed in gas

Last Answer : (1) Solid dispersed in gas Explanation: Smoke is a collection of airborne solid and liquid particulates and gases emitted when a material undergoes combustion or pyrolysis, together with the quantity of air ... military (smoke-screen), cooking (smoked salmon), or smoking (tobacco, cannabis, etc.).

An emulsion is a colloid of a – (1) gas in a liquid (2) liquid in a liquid (3) liquid in a gas (4) gas in a solid

Description : An emulsion is a colloid of a – (1) gas in a liquid (2) liquid in a liquid (3) liquid in a gas (4) gas in a solid

Last Answer : (2) liquid in a liquid Explanation: An emulsion is a mixture of two or more liquids that are normally immiscible (nonmixable or unblendable). Emulsions are part of a more general class of ... ). Examples of emulsions include vinaigrettes, milk, mayonnaise, and some cutting fluids for metal working.

Arrange solid, liquid and gas in order of energy. Give reason.

Description : Arrange solid, liquid and gas in order of energy. Give reason.

Last Answer : Ans. Solid < liquid < gas. This is because solid absorb energy to change into a liquid which further absorb energy to change into a gas.

Which one of the following best defines the word “allotropes”? A Different structural forms of an element B A pair of substances that differ by H+ C Elements that possess properties intermediate between those of metals and nonmetals D Atoms of a given atomic number that have a specific number of neutrons E The different phases (solid, liquid or gas) of a substance

Description : Which one of the following best defines the word allotropes ? A Different structural forms of an element B A pair of substances that differ by H+ C Elements that possess properties intermediate between ... a specific number of neutrons E The different phases (solid, liquid or gas) of a substance

Last Answer : A Different structural forms of an element 

What is the name given to the temperature and pressure at which solid, liquid, and gas coexist for a pure material?

Description : What is the name given to the temperature and pressure at which solid, liquid, and gas coexist for a pure material?  

Last Answer : ANSWER: TRIPLE POINT

An emulsion is a colloidal solution of (1) Liquid in liquid (2) Solid in liquid (3) Gas in solid (4) Solid in Solid

Description : An emulsion is a colloidal solution of (1) Liquid in liquid (2) Solid in liquid (3) Gas in solid (4) Solid in Solid

Last Answer :  Liquid in liquid

An emulsion is a colloid of a (1) gas in a liquid (2) liquid in a liquid (3) liquid in a gas (4) gas in a solid

Description : An emulsion is a colloid of a (1) gas in a liquid (2) liquid in a liquid (3) liquid in a gas (4) gas in a solid

Last Answer : liquid in a liquid

Smoke is formed due to (1) solid dispersed in gas (2) solid dispresed in liquid (3) gas dispresed in solid (4) gas dispersed in gas

Description : Smoke is formed due to (1) solid dispersed in gas (2) solid dispresed in liquid (3) gas dispresed in solid (4) gas dispersed in gas

Last Answer :  solid dispersed in gas

In vapour compression cycle the condition of refrigerant is superheated vapour (a) after passing through the condenser (b) before passing through the condenser (c) after passing through the expansion or throttle valve (d) beforeentering the expansion valve

Description : In vapour compression cycle the condition of refrigerant is superheated vapour (a) after passing through the condenser (b) before passing through the condenser (c) after passing through the expansion or throttle valve (d) beforeentering the expansion valve

Last Answer : Ans: b

Coolant present in the primary circuit of a pressurised water reactor is high pressure (A) Sub cooled water (B) Saturated water (C) Superheated steam (D) Saturated steam

Description : Coolant present in the primary circuit of a pressurised water reactor is high pressure (A) Sub cooled water (B) Saturated water (C) Superheated steam (D) Saturated steam

Last Answer : (B) Saturated wate

Pick out the wrong statement. (A) Superheated steam is preferably not used for process heating because of its low heat transfer film co-efficient (B) In a shell and tube heat exchanger, the shell pressure drop is maximum for orifice baffles (C) S.I. unit of fouling factor is Watt/m2 .°K (D) Longitudinal fins are used in extended surface heat exchangers, when the direction of fluid flow is parallel to the axis of the tube

Description : Pick out the wrong statement. (A) Superheated steam is preferably not used for process heating because of its low heat transfer film co-efficient (B) In a shell and tube heat exchanger ... surface heat exchangers, when the direction of fluid flow is parallel to the axis of the tube

Last Answer : (C) S.I. unit of fouling factor is Watt/m2 .°K

It is not preferable to use superheated steam in evaporators, because of its very (A) High temperature (B) High pressure (C) Low film co-efficient (D) None of these

Description : It is not preferable to use superheated steam in evaporators, because of its very (A) High temperature (B) High pressure (C) Low film co-efficient (D) None of these

Last Answer : (C) Low film co-efficient

The film co-efficient is decreased due to the presence of non-condensing gases in the vapors. The film co-efficient of superheated vapor as compared to that of saturated vapor is (A) More (B) Less (C) Some (D) Either more or less; depends on the nature of vapor

Description : The film co-efficient is decreased due to the presence of non-condensing gases in the vapors. The film co-efficient of superheated vapor as compared to that of saturated vapor is (A) More (B) Less (C) Some (D) Either more or less; depends on the nature of vapor

Last Answer : (C) Some

One kilogram of water at 0°C is changed to superheated steam of one atm pressure and 300° C. The major heat consumption in the process will be to (A) Heat the water from 0°C to 100°C (B) Evaporate the water (C) To superheat the steam (D) Data insufficient, can't be predicted

Description : One kilogram of water at 0°C is changed to superheated steam of one atm pressure and 300° C. The major heat consumption in the process will be to (A) Heat the water from 0°C to 100°C (B) Evaporate the water (C) To superheat the steam (D) Data insufficient, can't be predicted

Last Answer : (B) Evaporate the water

Pick out the wrong statement. (A) In process heat exchangers, saturated steam is preferred over the superheated steam (B) The maximum is the emissive power of a surface at a temperature T1 occurs at a wavelength of λ1 . If the surface temperature is halved, the maximum in the emissive power would occur at a wavelength of 0.5 λ1 (C) When a vertical plate is heated in infinite air environmental under natural convection conditions, the velocity profile in air, normal to the plate, exhibits a maximum

Description : Pick out the wrong statement. (A) In process heat exchangers, saturated steam is preferred over the superheated steam (B) The maximum is the emissive power of a surface at a temperature T1 ... under natural convection conditions, the velocity profile in air, normal to the plate, exhibits a maximum

Last Answer : (B) The maximum is the emissive power of a surface at a temperature T1 occurs at a wavelength of λ1 . If the surface temperature is halved, the maximum in the emissive power would occur at a wavelength of 0.5 λ1

For a given set of operating pressure limits of a Rankine cycle, the highest, efficiency occurs for [GATE-1994] (a) Saturated cycle (b) Superheated cycle (c) Reheat cycle (d) Regenerative cycle.

Description : For a given set of operating pressure limits of a Rankine cycle, the highest, efficiency occurs for [GATE-1994] (a) Saturated cycle (b) Superheated cycle (c) Reheat cycle (d) Regenerative cycle. 

Last Answer : (d) Regenerative cycle. 

Adiabatic compression of a saturated water vapour makes it (A) Supersaturated (B) Superheated (C) Both (A) and (B) (D) Neither (A) nor (B)

Description : Adiabatic compression of a saturated water vapour makes it (A) Supersaturated (B) Superheated (C) Both (A) and (B) (D) Neither (A) nor (B)

Last Answer : B) Superheated

Vapour which is at a pressure smaller than the saturation pressure for the temperature involved is called a __________ vapour. (A) Superheated (B) Desuperheated (C) Non-condensable (D) None of these

Description : Vapour which is at a pressure smaller than the saturation pressure for the temperature involved is called a __________ vapour. (A) Superheated (B) Desuperheated (C) Non-condensable (D) None of these

Last Answer : (A) Superheated

Which of the following identities can be most easily used to verify steam table data for superheated steam? (A) (∂T/∂V)S = (∂p/∂S)V (B) (∂T/∂P)S = (∂V/∂S)P (C) (∂P/∂T)V = (∂S/∂V)T (D) (∂V/∂T)P = -(∂S/∂P)T

Description : Which of the following identities can be most easily used to verify steam table data for superheated steam? (A) (∂T/∂V)S = (∂p/∂S)V (B) (∂T/∂P)S = (∂V/∂S)P (C) (∂P/∂T)V = (∂S/∂V)T (D) (∂V/∂T)P = -(∂S/∂P)T

Last Answer : D) (∂V/∂T)P = -(∂S/∂P)T

Saturated steam at a pressure of 25 kg/cm2is throttled to attain 5 kg/cm2. Then the outcoming steam will be (A) Wet (B) Saturated (C) Superheated (D) None of these

Description : Saturated steam at a pressure of 25 kg/cm2is throttled to attain 5 kg/cm2. Then the outcoming steam will be (A) Wet (B) Saturated (C) Superheated (D) None of these

Last Answer : C) Superheated

Dry saturated steam can be converted into superheated steam by (A) Increasing its cross-sectional area of flow (B) Passing it through a pressure reducing valve (C) Forcing it downwards through a vertical tube (D) None of these

Description : Dry saturated steam can be converted into superheated steam by (A) Increasing its cross-sectional area of flow (B) Passing it through a pressure reducing valve (C) Forcing it downwards through a vertical tube (D) None of these

Last Answer : (B) Passing it through a pressure reducing valve

What type of steam is generated by evaporator tube of Lamont boiler ? a. Saturated steam b. Unsaturated steam c. Superheated steam d. Flash steam

Description : What type of steam is generated by evaporator tube of Lamont boiler ? a. Saturated steam b. Unsaturated steam c. Superheated steam d. Flash steam

Last Answer : a. Saturated steam

Locomotive boiler has a) 137 fire tubes and 44 superheated tubes b) 147 fire tubes and 34 superheated tubes c) 157 fire tubes and 24 superheated tubes d) 167 fire tubes and 14 superheated tubes

Description : Locomotive boiler has a) 137 fire tubes and 44 superheated tubes b) 147 fire tubes and 34 superheated tubes c) 157 fire tubes and 24 superheated tubes d) 167 fire tubes and 14 superheated tubes

Last Answer : c) 157 fire tubes and 24 superheated tubes