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प्रश्न
The coolant in a chemical or a nuclear plant (i.e., the liquid used to prevent the different parts of a plant from getting too hot) should have high specific heat.
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उत्तर १
The coolant in a chemical or nuclear plant should have a high specific heat. This is because higher the specific heat of the coolant, higher is its heat-absorbing capacity and vice versa. Hence, a liquid having a high specific heat is the best coolant to be used in a nuclear or chemical plant. This would prevent different parts of the plant from getting too hot
उत्तर २
This is because heat absorbed by a substance is directly proportional to the specific heat of the substance.
संबंधित प्रश्न
You have a choice of three metals A, B, and C, of specific heat capacities 900 Jkg-1 °C-1, 380 Jkg-1 °C-1 and 460 Jkg-1 °C-1 respectively, to make a calorimeter. Which material will you select? Justify your answer.
A copper vessel of mass 100 g contains 150 g of water at 50°C. How much ice is needed to cool it to 5°C?
Given: Specific heat capacity of copper = 0.4 Jg-1 °C-1
The Specific heat capacity of water = 4.2 Jg-1 °C-1
The Specific latent heat of fusion ice = 336 Jg-1
A solid metal weighing 150 g melts at its melting point of 800 °C by providing heat at the rate of 100 W. The time taken for it to completely melt at the same temperature is 4 min. What is the specific latent heat of fusion of the metal?
During the phase change does the average kinetic energy of the molecules of the substance increase?
Name the S.I. unit of heat.
Name a liquid which has the highest specific heat capacity.
What do you mean by the following statement?
The heat capacity of a body is 50 JK-1?
Explain the term boiling point ?
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Name three fossil fuels that emit carbon dioxide into the atmosphere ?
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Fill in the following blank using suitable word:
SI unit of heat is .........
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What are other units of heat? Name and define them.
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A certain amount of heat Q will warm 1 g of material X by 3°C and 1 g of material Y by 4°C. Which material has a higher specific heat capacity?
Write an expression for the heat energy liberated by a hot body.
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An electric immersion heater is rated 1250 W. Calculate the time in which it will heat 20 kg of water at 5°C to 65°C.
Solve the following problem.
What is the specific heat of metal if 50 cal of heat is needed to raise 6 kg of the metal from 20°C to 62 °C?
The specific heat capacity of water is 1 cal/g °C.
All metals have the same specific heat capacity.
The cold object the hot object enclosed in one box of heat-resistant material.
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- Which principle can show that the energy exchange takes place between two objects only when kept in isolated system?
Consider the statement given below and choose the correct option.
Assertion: Radiation is a form of heat transfer which takes place only in vacuum.
Reason: The thermal energy is transferred from one part of a substance to another part without the actual movement of the atoms or molecules.
The heat capacity of the vessel of mass 100 kg is 8000 J/°K. Find its specific heat capacity.
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Find the odd one out:
Which method is used to determine the specific heat capacity of both solids and liquids by mixing a substance of unknown specific heat with water?
