The equilibrium constant of the following isomerisation reaction at 400K and 298 K are 2.07 and 3.42 respectively.
cis-butene trans-butene
Which of the following is/are correct ?
I. The reaction is exothermic
II. The reaction is endothermic
III. At 400K 50% of cis-butene and 50% of trans-butene are present of equilibrium
IV. Both at 298K and 400K, k1 =k–1
(A) I and IV
(B) II and IV
(C) I and III
(D) I only