A gas expands adiabatically at constant \( \mathrm{P} \) pressure s...

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A gas expands adiabatically at constant
\( \mathrm{P} \) pressure such that \( T \propto V^{-1 / 2} \)

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The value of \( \gamma\left(C_{p_{1} m_{1}} / C_{v_{1} m_{1}}\right) \) of the gas will be:
(1) 1.30
(2) 1.50
(3) 1.70
(4) 2
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