MCQ
For an ideal gas, consider only $P - V$ work in going from an initial state $X$ to the final stat $Z$. The final state $Z$ can be reached by either of the two paths shown in the figure. Which of the following choice$(s)$ is (are) correct? [take $\Delta S$ as change in entropy and w as work done].
$(A)$ $\Delta S _{ x \rightarrow z}=\Delta S _{ x \rightarrow y}+\Delta S _{ y \rightarrow z}$
$(B)$ $w_{x \rightarrow z}=w_{x \rightarrow y}+w_{y \rightarrow z}$
$(C)$ $w_{x \rightarrow z \rightarrow z}=w_{x \rightarrow y}$
$(D)$ $\Delta S _{x \rightarrow y \rightarrow z}=\Delta S _{x \rightarrow y}$
- A$(A,C)$
- B$(B,C)$
- C$(A,D)$
- D$(C,D)$
