2. (5 pts) True or False (briefly state the reason of your choice)
a. If $$\Delta G^\circ > 0$$, then $$K > 1$$.
b. An endothermic reaction cannot have a $$K > 1$$.
c. An exothermic reaction always has a negative $$\Delta G^\circ$$.
d. The stronger the acid, the larger the $$K_a$$ value.
e. The stronger the acid, the smaller the pH value.