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n moles of an ideal gas with constant volume heat capacity C V undergo an isobaric expansion by certain volume. The ratio of the work done in the process, to the heat supplied is :

1. nR C nR V +
2. nR – C nR V
3. nR C nR 4 V +
4. nR – C nR 4 V

Correct answer: nR C nR V +

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