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Class XI Physics Thermodynamics 8

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Question 1

A Carnot freezer takes heat from water at 0°C inside it and rejects it to the room at a temperature of 27°C. The latent heat of ice is

. If 5 kg of water at 0°C is converted into ice at 0°C by the freezer, then the energy consumed by the freezer is close to:

Question 2

The efficiency of Carnot engine depends on

Question 3

If two not reacting gases are mixed in a container then

Question 4

Carnot engine cannot have 100% efficiency. State the correct one

Question 5

The COP of a refrigerator is 5 is kept in a room having temperature at 27⁰C temperature inside the refrigerator will be

Question 6

The temperature of the gas before and after expansion

Question 7

A vacuum pump is connected to an insulated vessel to pump out water vapor at 0^oC maximum % of water solidified in this process is latent heat of vaporization is 21x10⁵ j/kg latent heat of freezing of water is 33x10⁵ j/kg

Question 8

A system goes from A to B via two processes I and II as shown in the figure. If ΔU₁ and ΔU₂ are the changes in internal energies in the processes I and II respectively, the

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Dec 4JEE & BITSAT