Consider the reaction: {rm{X}}_2 (g); rightarrow ;2;{rm{X(}}g). When a vessel initially containing 715 torr of {rm X}_{2} comes to equilibrium at 298 {rm K}, the equilibrium partial pressure of X is 94.0 torr. The same reaction is repeated with an initial partial pressure of 759 torr of {rm X}_{2} at 800 K; the equilibrium partial pressure of X is 518 torr.