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Heat Capacity

An ideal gas ...

Question

An ideal gas expands according to the law $p V^{2}$ = const. The molar heat capacity C is

C_{v}

+ R

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C_{v}

- R

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C_{v}

+ 2R

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C_{v}

- 3R

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Solution

The correct option is B $C_{v}$ - R
The correct answer is option(B).
Molar heat capacity,
$C = C_{V} + \frac{R}{1 - K} = C_{V} + \frac{R}{1 - 2} = C_{V} - R$

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