JEE Main | 2018Chemical EquilibriumEasy

Question

Which of the following lines correctly show the temperature dependence of equilibrium constant, K, for an exothermic reaction ?
 

Options

A.

B and C

B.

C and D

C.

A and D

D.

A and B

Solution

From thermodynamics
lnk = -∆HoRT+∆SoR
for exothermic reaction,
∆H=-ve
slope = -∆HoR=+ve
So from graph, line should be A & B.

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