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Question

The specific rate of constant for a reaction increases by a factor of 4, if the temperature is changed from 27C to 47C. Find the activation energy for the reaction:

A
55.33kJmole1
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B
64.67kJmole1
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C
68.34kJmole1
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D
70.03kJmole1
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Solution

The correct option is A 55.33kJmole1
As we know,
k=AeEa/RT
k1=AeEa/R300
k2=AeEa/R320=4k1
by solving
Ea=55.33kJ/ mole

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