NEET Physics Thermodynamics Questions Solved

If the ratio of specific heat of a gas at constant pressure to that at constant volume is γ, the change in internal energy of a mass of gas, when the volume changes from V to 2V constant pressure p, is

(1) $R/\left(\gamma -1\right)$

(2) pV

(3) $pV/\left(\gamma -1\right)$

(4) $\gamma pV/\left(\gamma -1\right)$

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