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JEE Advanced 2008 Chemistry question

ChemistryThermodynamicsJEE Advanced 2008

STATEMENT-1: For every chemical reaction at equilibrium, standard Gibbs energy of reaction is zero.

STATEMENT-2: At constant temperature and pressure, chemical reactions are spontaneous in the direction of decreasing Gibbs energy.

Answer: (D)

Solution

At equilibrium, ΔrG=0 (not ΔrG°); ΔrG°=-RTlnK is zero only if K=1, so

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Question ID VK-000821