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The energy change accompanying the equil...

The energy change accompanying the equilibrium reaction `A hArr B` is `-33.0 kJ mol^(-1)`.

Assuming that pre-exponential factor is same for forward and backward reaction answer the following :
The threshold energy of the reaction is when PE of B is `30 kJ mol^(-1)`. Given that ratioo of forward reaction and backward reaction is that of 20:31

A

130

B

140

C

123

D

125

Text Solution

Verified by Experts

The correct Answer is:
C
Threshold energy `= E_(b) + P E` of product `= 93 + 30 = 123 kJ mol^(-1)`
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