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JEE PHYSICS MCQ: THERMODYNAMICS

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Application +4 | -1
At 500 K500 \mathrm{~K} for an isobaric process.

ΔSsystem =−10kJmolK and ΔSsurr =12kJmolK\Delta \mathrm{S}_{\text {system }}=-10 \frac{\mathrm{kJ}}{\mathrm{mol} \mathrm{K}} \text { and } \Delta \mathrm{S}_{\text {surr }}=12 \frac{\mathrm{kJ}}{\mathrm{molK}}

Therefore, ΔG\Delta \mathrm{G} for the entire process is-
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Correct option: B
−1000 kJ/mol-1000 \mathrm{~kJ} / \mathrm{mol}
Option B (-1000 kJ/mol) is correct because it is calculated using the relationship between ΔStotal\Delta S_{\text {total}} and ΔG\Delta G for an isobaric process.

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