Which statement about spontaneous and nonspontaneous processes is correct? Spontaneous processes are favored by a decrease in H,
but nonspontaneous reactions are favored by an increase in H. Spontaneous processes are favored by a decrease in S, but nonspontaneous reactions are favored by an increase in S. An increase in S favors both spontaneous and nonspontaneous processes. A decrease in H favors both spontaneous and nonspontaneous processes.
Answer: Spontaneous processes are favored by a decrease in H, but nonspontaneous reactions are favored by an increase in H.
Explanation:
= gibbs free energy
= change in enthalpy
= change in entropy
For a reaction to be spontaneous, = -ve. For this has to be negative i.e. there should be a decrease in enthalpy and has to be positive i.e. there should be a increase in entropy.