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The pressure and volume of an ideal gas are related as PV 3/2 = K (Constant). The work done when the gas is taken from state A(P 1 , V 1 , T 1 ) to state B(P 2 , V 2 , T 2 ) is :

1. 2 2 1 1 2(P V P V ) −
2. 1 1 2 2 2(P V P V ) −
3. 2 2 1 1 2(P V P V ) −
4. 1 1 2 2 2( P V P V ) −

Correct answer: 1 1 2 2 2(P V P V ) −

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