The equilibrium constant for the reaction A ⇌ 2 B is K=9 at a certain temperature. Four related reactions are shown below, each carried out at the same temperature.
I. 2 A ⇌ 4 B
II. B ⇌ 0.5 A
III. A ⇌ 2 B (original reaction)
IV. 3 A ⇌ 6 B
Which reaction has the largest equilibrium constant under these conditions?
a) III
b) II
c) IV
d) I