For polytropic process ${P V}^{n} =$ constant, $C_{m}$ (molar heat capacity) of an ideal gas is given by:

C_{v, m} + \frac{R}{(n - 1)}

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C_{v, m} + \frac{R}{(1 - n)}

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C_{v, m} + R

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C_{p, m} + \frac{R}{(n - 1)}

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Solution

The correct option is B $C_{v, m} + \frac{R}{(1 - n)}$

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