A certain reaction has negative values for both ΔH and ΔS.Therefore,the reaction
A)can be spontaneous if the temperature is low enough.
B)cannot be spontaneous at any temperature.
C)must be spontaneous at all temperatures.
D)can be spontaneous if the temperature is high enough.
E)has a positive free energy at any temperature.

Question

Quizplus · Accepted Answer

A reaction can be spontaneous if ΔG (free energy) is negative. ΔG = ΔH - TΔS. If both ΔH and ΔS are negative, then ΔG can be negative at low temperatures (since the negative TΔS term decreases with decreasing temperature). Therefore, the reaction can be spontaneous if the temperature is low enough.

A Certain Reaction Has Negative Values for Both ΔH and ΔS.Therefore,the