Question

A thermodynamic system goes from states \[ \text{i)}\quad (P,V)\ \rightarrow\ (P,2V) \] \[ \text{ii)}\quad (P_1,V)\ \rightarrow\ (2P_1,V) \] Then the works done in these two cases are

• A. \[ \text{i) Zero} \qquad \text{ii) Zero} \]
• B. \[ \text{i) Zero} \qquad \text{ii) }P_1V \]
• C. \[ \text{i) }PV \qquad \text{ii) }P_1V \]
• D. \[ \text{i) }PV \qquad \text{ii) Zero} \]

Hint:

Remember: \[ \text{Isobaric process: } W=P\Delta V \] and \[ \text{Isochoric process: } W=0. \] No volume change means no work done by the gas.

Answer 1

The Correct Option is D