NEET Test Series from KOTA - 10 Papers In MS WORD
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PHXI12:THERMODYNAMICS
371428
Assertion : The specific heat of a gas in an adiabatic process is zero and in an isothermal process is infinite. Reason : Specific heat of gas is inversely proportional change in temperature.
1 Both Assertion and Reason are correct and Reason is the correct explanation of Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but reason is correct.
Explanation:
\(C=\dfrac{Q}{m(\Delta T)}\). In an adiabatic process, the specific heat \(C\) is zero; \((Q=0)\) (i.e., no heat exchange). In an isothermal process, the specific heat is infinite due to\((\Delta T=0)\) So, the fact that \(C \propto \dfrac{1}{\Delta T}\) does not sufficient to explain Assertion fully. So correct option is (2).