Q.

A gas is compressed adiabatically, which one of the following statement is NOT true.

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a

The change in the internal energy is equal to the work done on the gas

b

The temperature of the gas increases.

c

There is no heat supplied to the system

d

There is no change in the internal energy 

answer is B.

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Detailed Solution

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 For adiabatic process dQ=0 dU+dW=0 dU=dW
Adiabatic compression leads to raise in temperature of gas.
Hence internal energy increases.

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