For a reversible reaction A B, the Hforward reaction = 20 kJ mol–1. The activation energy of the uncatalysed forward reaction is 300 kJ mol–1. When the reaction is catalysed keeping the reactant conce

Question

For a reversible reaction A B, the Hforward reaction = 20 kJ mol–1. The activation energy of the uncatalysed forward reaction is 300 kJ mol–1. When the reaction is catalysed keeping the reactant concentration same, the rate of the catalysed forward reaction at 27°C is found to be same as that of the uncatalysed reaction at 327°C. The activation energy of the catalysed backward reaction is kJ molw.

Prashant Kotian · Accepted Answer

Correct answer: .. Ea = 300 kJ/mol Cat 1 a a T E T E              ) E ( 300 f a  (Ea1)f = 150 H = b a f a ) E ( ) E (  20 = 150 – b a ) E ( b a ) E ( = 130 kJ/mol

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