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JEE Advance 2012
paper 1
Multiple correct answers - Select all that apply
Question
For an ideal gas, consider only $\mathrm{P}-\mathrm{V}$ 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 $\Delta \mathrm{S}$ as change in entropy and w as work done].
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Select ALL correct options:
A
$\Delta \mathrm{S}_{\mathrm{x} \rightarrow \mathrm{z}}=\Delta \mathrm{S}_{\mathrm{x} \rightarrow \mathrm{y}}+\Delta \mathrm{S}_{\mathrm{y} \rightarrow \mathrm{z}}$
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
$\Delta S_{x \rightarrow y \rightarrow z}=\Delta S_{x \rightarrow y}$
✓ Correct! Well done.
✗ Incorrect. Try again or view the solution.
⚠ Partially correct. Some answers are missing.
Solution
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