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Q.

A catalyst lowers the activation energy of a reaction in such a manner that rate constant at 27° C uncatalysed reaction equals the rate constant at - 73° C for catalysed reaction. By how many kJ activation energy barrier is reduced by catalyst? Activation energy for the reaction is 24 kJ.

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answer is 8.

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Detailed Solution

Here, the rate law,

24300=24−x200 ⇒x=8
 

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