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Write down the coefficient of performanc...

Write down the coefficient of performance of an ideal refrigerator.

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CHHAYA PUBLICATION-FIRST AND SECOND LAW OF THERMODYNAMICS-Exercise - Very Short Answer Type Questions (Mark 1)
  1. A bicycle pump becomes hot when air is pumped into the tube. Why?

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  2. Air coming out form a burst bicycle or motorcar tube appears to be col...

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  3. If gamma of a gas is equal to 1.66 then what is the number of atoms in...

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  4. Adiabatic curves are comparatively then isothermal curves. [Fill in t...

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  5. If the pressure and the temperature of a gas change at constant volume...

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  6. What is the change in internal energy in an isothermal process?

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  7. In which expansion the internal energy of a gas be decreases?

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  8. If M is the molecular weight of a gas, what is the difference between ...

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  9. In case of 1 mol of an ideal gas, write down the value of C(v) - C(p).

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  10. An ideal gas rejects 10 cal of heat at constant volume. Find the work ...

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  11. What is the relation between p and V in an adiabatic process?

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  12. A process against frictional force cannot be . [Fill in the blank]

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  13. Two balls of the same mass, one of iron and the other of copper, are d...

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  14. In an isothermal process, the gas containers should be made of highlym...

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  15. In an adiabatic process, the gas containers should be made of highly ...

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  16. Is joule's heating process reversible or irreversible?

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  17. Write down the coefficient of performance of an ideal refrigerator.

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  18. What is the value of the efficiency of an ideal heat engine?

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  19. Heat engine is a mechanical device which converts heat into . [Fill in...

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  20. When heat is gained or lost by heat reservoir, its temperature .[Fill ...

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