INCORRECT statement(s) among the following is/are

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The entropy of every system increases during a spontaneous change.

Higher amount of mechanical work can be gotten out of a system that undergoes an irreversible process, as compared to a reversible process.

As a reversible reaction moves towards equilibrium, Gibbs energy change of the reaction keeps on increasing and reaches a maximum at equilibrium.

Energy of activation of a spontaneous process must be zero.

answer is A, B, D.

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Detailed Solution

Energy of activation is not the criteria for a process to be spontaneous and most of the reactions have non-zero energy of activation. Entropy of the universe increases during a spontaneous change. $Δ G$ keeps on becoming less negative and becomes zero at equilibrium. Work is maximum when the process is carried out reversibly.

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