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Q.

For a reaction at constant pressure to be spontaneous, which relationship must be correct?

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a

$Δ G_{rxn} < 0$

b

$Δ S_{r \times n} < 0$

c

$Δ H_{rxn} < 0$

d

$Δ S_{uni} < 0$

answer is B.

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Detailed Solution

The relationship which is correct for the constant pressure to be spontaneous is,

$Δ G_{rxn} < 0$

As for the spontaneous process, the Gibbs free energy is decreases.

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