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Question

Assertion :The specific heat of a gas in an adiabatic process is zero but it is infinite in an isothermal process. Reason: Specific heat of a gas is directly proportional to heat exchange with the system and inversely proportional to change in temperature.

A
Statement-1 is false, Statement-2 is true.
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B
Statement-1 is true, Statement-2 is true; Statement-2 is a correct explanation for Statement-1
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C
Statement-1 is true, Statement-2 is true; Statement-2 is not a correct explanation for Statement-1
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D
Statement-1 is true, Statement-2 is false
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Solution

The correct option is B Statement-1 is true, Statement-2 is true; Statement-2 is a correct explanation for Statement-1
Specific heat is defined as the amount of energy required to raise the temperature of 1 kg of a substance by 1C.
C = QmΔT
In isothermal process ΔT=0 . Therefore, C is infinite .
In adiabatic process Q=0. Therefore, C is zero.

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