The activation energies for the forward and backward reactions are and

CHEMISTRY · Single correct · AP · Chemistry · Thermodynamics and Electrochemistry · Thermodynamics and Electrochemistry

Problem

The activation energies for the forward and backward reactions are

0.303\text{ kcal mol}^{-1}

and

8.0\text{ kcal mol}^{-1}

, respectively, at

500\text{ K}

. Assuming equal pre-exponential factors for the forward and reverse reactions, and

R=2\text{ cal mol}^{-1}\text{K}^{-1}

, the equilibrium constant for

A\rightleftharpoons B

is (1)

10

(2)

100

(3)

1000

(4)

0.1