JEE Main 2015 Chemistry question

The increase of pressure on ice water system at constant temperature will lead to:

(1)A decrease in the entropy of the system
(2)An increase in the Gibbs energy of the system
(3)A shift of the equilibrium in the forward directionCorrect
(4)No effect on the equilibrium

Answer: (3)

Solution

Water is one of the very few substances that *contracts* on melting — liquid water (density 1.00 g cm) is denser than ice (0.917 g cm). The forward process ice water therefore involves a *decrease* in volume. By Le Chatelier's principle, raising the pressure drives the equilibrium towards the side

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Question ID VK-115351