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MHT CET Physics question

PhysicsThermodynamicsMHT CET

One mole of an ideal gas at an initial temperature of K does joules of work adiabatically. If the ratio of specific heats of this gas at constant pressure and at constant volume is , the final temperature of gas will be [CBSE PMT 2004]

Answer: (D)

Solution

means and, with , gives , so

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Question ID VK-063521