Question

Assertion Molar heat capacity cannot be defined for isothermal process.
Reason In isothermal process $p-V$ versus $T$ graph is a dot.

• A. Both assertion and reason are true and reason is the correct explanation of assertion
• B. Both assertion and reason are true but reason is not the correct explanation of assertion
• C. Assertion is true but reason is false.
• D. Both assertion and reason are false.

Answer 1

Answer: (B)

$C=\frac{Q}{m \Delta T}$
In isothermal process $\Delta T=0$. Therefore, $C$ is not defined further in isothermal process $p V$ and $T$ both are constants.