If under a given set of conditions the reaction?→? A→B occurs with Δ?=-14 kJ/mol,ΔG=-14 kJ/mol, and the reaction?→? C→B occurs with Δ?=+16 kJ/molΔG=+16 kJ/mol, then

Question

Chemistry

Harper Mcbride

17 May, 07:16

If under a given set of conditions the reaction?→? A→B occurs with Δ?=-14 kJ/mol,ΔG=-14 kJ/mol, and the reaction?→? C→B occurs with Δ?=+16 kJ/molΔG=+16 kJ/mol, then

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Answers (1)

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Oliver Welch · Answer 1

Reaction A to B is feasible and exothermic, C to B is not feasible and would be endothermic, given this, the reaction that is feasible is B to C, because the opposite direction of the reaction changes the sign of ΔG and ΔH.

Explanation:

When ΔG 0, the reaction cannot occur.

When ΔH 0, it meas that the reaction is endothermic, so it needs energy to be feasible.