Published by:
CGP EDU Academic Team
Published on: August 14, 2026
The equilibrium constant of the following isomerization reaction at 400 K 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 400 K 50% of cis-butene and 50% of trans-butene are present of equilibrium
IV. Both at 298 K and 400 K, ki = k -1
Text Solution
Verified by ExpertsThe correct answer is:
D
I only
As on increasing temperature K eq is increasing so reaction is exothermic.
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