For an addition reaction, why does free energy, $\Delta$G, become more positive with increasing temperature?
A) The positive entropy dominates at high temperature.
B) The negative entropy dominates at high temperature.
C) The positive enthalpy dominates at high temperature.
D) The negative enthalpy dominates at high temperature.
E) The enthalpy and entropy cancel at high temperature.

Question

Quizplus · Accepted Answer

The free energy change of an addition reaction is given by ∆G = ∆H - T∆S. As the temperature increases, the T∆S term becomes more negative, which causes the overall free energy change (∆G) to become more positive. In other words, the negative entropy term dominates at high temperature.

For an Addition Reaction, Why Does Free Energy Δ\DeltaΔ G, Become More Positive with Increasing Temperature? A) the Positive

For an Addition Reaction, Why Does Free Energy $\Delta$ G, Become More Positive with Increasing Temperature?
A) the Positive