Consider the equilibrium C2H6 (g) C2H4 (g) + H2 (g). At 1000 K and a constant total pressure of 1 bar, C2H6 (g) is introduced into a reaction vessel. The total pressure is held constant at 1 bar and at equilibrium the composition of the mixture in mole percent is as follows: H2 (g), 26%; C2H4 (g), 26%; and C2H6 (g), 48%.

a) If = 137.0 kJ mol1 , calculate the value of KP at 298.15 K

b) Calculate KP at 1000 K and the degree of dissociation of C2H6(g).

c) Calculate for this reaction at 298.15 K