Barrons SAT Subject Test Chemistry, 13th Edition

59. (E) All the first four statements are correct.

The Gibbs free-energy equation is:

ΔG = ΔH − T ΔS

In choice (E), if ΔH is positive and ΔS is negative, then ΔG will

definitely be positive, which means that the forward reaction will not

occur spontaneously.