Heat given to a body which raises its temperature by 1°C is known as - (1) water equivalent (2) thermal capacity (3) specific heat (4) temperature gradient

Heat given to a body which raises its temperature by 1°C is known as - (1) water equivalent (2) thermal capacity (3) specific heat (4) temperature gradient
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(2) thermal capacity Explanation: Heat capacity or thermal capacity is a measurable physical quantity equal to the ratio of the heat added to (or removed from) an object to the resulting temperature change.
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Heat required to raise the temperature of a body by 1 °C is called its (A) Heat capacity (B) Specific heat capacity (C) Thermal conductivity (D) Water equivalent

Description : Heat required to raise the temperature of a body by 1 °C is called its (A) Heat capacity (B) Specific heat capacity (C) Thermal conductivity (D) Water equivalent

Last Answer : (A) Heat capacity

Amount of heat needed to rate the temperature of a substance by 1°C  a. Heat Exchange  b. Heat Engine  c. Specific Heat  d. None of the above

Description : Amount of heat needed to rate the temperature of a substance by 1°C  a. Heat Exchange  b. Heat Engine  c. Specific Heat  d. None of the above

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On a cold day when the room temperature is 15°C, the metallic cap of a pen becomes much colder than its plastic body, though both are at the same temperature of 15°C, because – (1) metals have higher thermal capacity than plastics (2) plastics have a lower density than metals (3) metals are good conductors of heat (4) plastics have a higher thermal conductivity than metals

Description : On a cold day when the room temperature is 15°C, the metallic cap of a pen becomes much colder than its plastic body, though both are at the same temperature of 15°C, because - (1) metals ... metals (3) metals are good conductors of heat (4) plastics have a higher thermal conductivity than metals

Last Answer : (3) metals are good conductors of heat Explanation: On a chilly day, the room temperature is lower than our body temperature. Since metals have a higher coefficient of thermal conductivity than plastic, they ... from our fingers will flow to the metal cap much more quickly than to the plastic body.

On a cold day when the room temperature is 15°C, the metallic cap of a pen becomes much colder than its plastic body, though both are at the same temperature of 15°C, because : (1) metals have higher thermal capacity than plastics (2) plastics have a lower density than metals (3) metals are good conductors of heat (4) plastics have a higher thermal conductivity than metals

Description : On a cold day when the room temperature is 15°C, the metallic cap of a pen becomes much colder than its plastic body, though both are at the same temperature of 15°C, because : (1) metals ... metals (3) metals are good conductors of heat (4) plastics have a higher thermal conductivity than metals

Last Answer : metals are good conductors of heat

In a heat exchanger, floating head is provided to (A) Facilitate cleaning of the exchanger (B) Increase the heat transfer area (C) Relieve stresses caused by thermal expansion (D) Increase log mean temperature gradient

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Last Answer : (C) Relieve stresses caused by thermal expansion

Fluid motion in the natural convection heat transfer between a solid surface and a fluid in contact with it, results from the (A) Existence of thermal boundary layer (B) Temperature gradient produced due to density difference (C) Buoyancy of the bubbles produced at active nucleation site (D) None of these

Description : Fluid motion in the natural convection heat transfer between a solid surface and a fluid in contact with it, results from the (A) Existence of thermal boundary layer (B) Temperature gradient produced ... difference (C) Buoyancy of the bubbles produced at active nucleation site (D) None of these

Last Answer : (D) None of these

The quantity of heat required to raise the temperature of a given substance by 1 oC is known as: a) sensible heat b) specific heat c) heat capacity d) latent heat

Description : The quantity of heat required to raise the temperature of a given substance by 1 oC is known as: a) sensible heat b) specific heat c) heat capacity d) latent heat

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Description : Calorie is a measure of  (a) specific heat  (b) quantity of heat  (c) thermal capacity  (d)entropy  (e) work.

Last Answer : Answer : b

One joule is the energy required to (A) Raise the temperature of 1 gm of water by 1°C (B) Raise the temperature of 1 kg of water by 1°C (C) Move a mass of 1 gm by 1 cm distance by a force of 1 Newton (D) Move a mass of 1 kg by 1 m distance by a force of 1 Newton

Description : One joule is the energy required to (A) Raise the temperature of 1 gm of water by 1°C (B) Raise the temperature of 1 kg of water by 1°C (C) Move a mass of 1 gm by 1 cm distance by a force of 1 Newton (D) Move a mass of 1 kg by 1 m distance by a force of 1 Newton

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At what temperature is the density of water the maximum? (1) 2°C (2) 4°C (3) 0°C (4) 1°C

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Sepsis causes a marked metabolic response. Which of the following statement(s) is/are true concerning the metabolic response to sepsis? a. Oxygen consumption is increased in the face of infection b. In a patient with a maximal metabolic rate secondary to trauma, the presence of infection will increase the rate further c. Metabolic rate increases at a rate of approximately 10% for each increase of 1°C in central temperature d. The extent of increase in oxygen consumption relates to the severity of the infection

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Onion seeds can germinate at a temperature of : a. 0-1°C b. 1-5°C c. 5-11°C d. 15-20°C

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Tender crop cannot tolerate a minimum temperature of a. -2°C b. -1°C c. 0°C d. All of above

Description : Tender crop cannot tolerate a minimum temperature of a. -2°C b. -1°C c. 0°C d. All of above

Last Answer : All of above

The time temperature combination for HTST paterurization of 71.1°C for 15 sec is selected on the basis of A.CoxiellaBurnetii B.E. coli C.B. subtilis D.C. botulinum

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The time temperature combination for HTST paterurization of 71.1°C for 15 sec is selected on the basis of A.CoxiellaBurnetii B.E. coli C.B. subtilis D.C. botulinum

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According to which law, all perfect gases change in volume by l/273th of their original volume at 0°C for every 1°C change in temperature when pressure remains constant  (a) Joule’s law  (b) Boyle’s law  (c) Regnault’s law  (d) Gay-Lussac law  (e) Charles’ law.

Description : According to which law, all perfect gases change in volume by l/273th of their original volume at 0°C for every 1°C change in temperature when pressure remains constant  (a) Joule’s law  (b) Boyle’s law  (c) Regnault’s law  (d) Gay-Lussac law  (e) Charles’ law.

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Water is used in car radiator because of its – (1) low density (2) easy availability (3) high specific heat capacity (4) low boiling point

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Which of the following criterion is used for any metal to be used as a cooking material ? (1) More specific heat (2) More thermal conductivity (3) Less thermal conductivity (4) Less electrical conductivity

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Heat transfer occurs by natural convection because change in temperature causes difference in (A) Viscosity (B) Density (C) Thermal conductivity (D) Heat capacity

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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

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Which of the following has the maximum specific heat capacity? (1) water (2) piece of iron (3) piece of gold (4) chloroform

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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

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Total heat of a substance is also known as  (a) internal energy  (b) entropy  (c) thermal capacity  (d) enthalpy  (e) thermal conductance.

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An imaginary line lying throughout the surface of ground and preserving a constant inclination to the horizontal is known as (A) Contour line (B) Horizontal equivalent (C) Contour interval (D) Contour gradient

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The snow on the mountains does NOT melt all at once when it is heated by the sum because: (1) It becomes very hard (2) It reflects most of the heat from the sum (3) it has a low specific heat capacity (4) it has a high latent heat of fusion

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The snow on the mountains does NOT melt all at once when it is heated by the sun because: (1) it becomes very hard (2) it reflects most of the heat from the sun (3) it has a low specific heat capacity (4) it has a high latent heat of fusion

Description : The snow on the mountains does NOT melt all at once when it is heated by the sun because: (1) it becomes very hard (2) it reflects most of the heat from the sun (3) it has a low specific heat capacity (4) it has a high latent heat of fusion

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Water is a highly effective coolant for a car engine because _____ A. Water is good conductor of heat B. Water has very high specific heat capacity C. Water boils at a comparatively high temperature D. Evaporation of water produces lot of cooling

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Last Answer : ANSWER: A

Water is a highly effective coolant for a car engine because -----? A. Water is good conductor of heat B. Water has very high specific heat capacity (Answer) C. Water boils at a comparatively high temperature D. Evaporation of water produces lot of cooling

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Last Answer : B. Water has very high specific heat capacity (Answer)

A solid metallic block weighing 5 kg has an initial temperature of 500°C. 40 kg of water initially at 25°C is contained in a perfectly insulated tank. The metallic block is brought into contact with water. Both of them come to equilibrium. Specific heat of block material is 0.4 kJ.kg-1. K-1. Ignoring the effect of expansion and contraction and also the heat capacity to tank, the total entropy change in kJ.kg-1, K-1is (A) -1.87 (B) 0 (C) 1.26 (D) 3.91

Description : A solid metallic block weighing 5 kg has an initial temperature of 500°C. 40 kg of water initially at 25°C is contained in a perfectly insulated tank. The metallic block is brought into contact with water. Both of them come to equilibrium. ... .kg-1, K-1is (A) -1.87 (B) 0 (C) 1.26 (D) 3.91

Last Answer : (B) 0

1m3 of an ideal gas at 500 K and 1000 kPa expands reversibly to 5 times its initial volume in an insulated container. If the specific heat capacity (at constant pressure) of the gas is 21 J/mole . K, the final temperature will be (A) 35 K (B) 174 K (C) 274 K (D) 154 K

Description : 1m3 of an ideal gas at 500 K and 1000 kPa expands reversibly to 5 times its initial volume in an insulated container. If the specific heat capacity (at constant pressure) of the gas is 21 J/mole . K, the final temperature will be (A) 35 K (B) 174 K (C) 274 K (D) 154 K

Last Answer : (C) 274 K

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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?

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What is defined as the energy required to raise the temperature of a unit mass of a substance by one degree?  A. Latent heat of fusion  B. Molar heat  C. Specific heat capacity  D. Specific heat

Description : What is defined as the energy required to raise the temperature of a unit mass of a substance by one degree?  A. Latent heat of fusion  B. Molar heat  C. Specific heat capacity  D. Specific heat

Last Answer : Specific heat

What refers to the amount of heat needed to raise the temperature of an object by one degree Celsius or 1K?  A. Heat capacity  B. Specific heat  C. Latent heat  D. Molar heat

Description : What refers to the amount of heat needed to raise the temperature of an object by one degree Celsius or 1K?  A. Heat capacity  B. Specific heat  C. Latent heat  D. Molar heat

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Energy stored in a body as thermal or internal energy consists of one of the following. Does it consist of: w) heat in the form of radiant energy x) molecular kinetic energy only y) molecular potential energy only z) both kinetic and potential energy

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The energy that can harness heat stored below the earth’s surface is known as ; (1) thermal energy (2) nuclear energy (3) tidal energy (4) geo-thermal energy

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Description : Which solid material has a high heat capacity but low thermal conductivity?

Last Answer : https://en.wikipedia.org/wiki/Thermal_barrier_coating

Pick out the wrong statement: (A) The capacity of an evaporator is reduced by the boiling point elevation (B) Corrosive liquid is normally passed through the tubes in a shell and tube heat exchanger (C) Steam jet ejector is used for vapor compression in a thermal recompression evaporator (D) Heat sensitive materials should be concentrated in high pressure evaporators

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A large proportion of oxygen remains unused in the human blood even after its uptake by the body tissues. This O2 (a) acts as a reserve during muscular exercise (b) raises the pCO2 of blood to 75 mm of Hg (c) is enough to keep oxyhaemoglobin saturation at 96% (d) helps in releasing more O2 to the epithelial tissues.

Description : A large proportion of oxygen remains unused in the human blood even after its uptake by the body tissues. This O2 (a) acts as a reserve during muscular exercise (b) raises the pCO2 of ... enough to keep oxyhaemoglobin saturation at 96% (d) helps in releasing more O2 to the epithelial tissues.

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