# When one mole of monoatomic ideal gas at T K undergoes adiabatic change under a constant external pressure of 1 atm changes volume from 1 litre to 2 l

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When one mole of monoatomic ideal gas at T K undergoes adiabatic change under a constant external pressure of 1 atm changes volume from 1 litre to 2 litre. The final temperature in Kelvin would be
A. (T)/(2^((2//3)))
B. T+(2)/(3xx0.0821)
C. T
D. T-(2)/(3xx0.0821)

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Correct Answer - D

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