For a given reaction, energy of activation
for forward reaction (Eaf
) is 80 KJ mol–1 and
'H = –40 KJ mol–1 for the reaction. A catalyst
lowers (Ea)f
by 20 KJ mol–1. The ratio of energy
of activation for reverse reaction before and after
addition of catalyst is :-
(1) 1.0 (2) 0.5 (3) 1.2 (4) 2.0
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