Predict the sign of $\Delta$ G for an endothermic reaction with a decrease in entropy.

Question

Quizplus · Accepted Answer

For an endothermic reaction with a decrease in entropy, $\Delta H$ is positive (endothermic) and $\Delta S$ is negative (decrease in entropy). The Gibbs free energy equation is $\Delta G = \Delta H - T\Delta S$. Since $\Delta H$ is positive and $-T\Delta S$ is also positive (because $\Delta S$ is negative and $T$ is always positive), $\Delta G$ is positive.

Predict the Sign Of Δ\DeltaΔ G for an Endothermic Reaction with a Decrease in Entropy

Predict the Sign Of $\Delta$ G for an Endothermic Reaction with a Decrease in Entropy