The energies of activation for forward and reverse reactions for respectively. The presence of a catalyst lowers the activation energy of both (forward and reverse) reactions by . The enthalpy change of the reaction
in the presence of a catalyst will be
20
300
120
280
As we learnt in
Catalyst -
A catalyst is a surface that increases the rate of a chemical reaction without itself being used up. It remains unchanged chemically providing an alternate path for the reaction at an accelerated rate by lowering the activation energy.
- wherein
Enthalpy change of reaction do not change by adding catalyst.
Option 1)
20
This option is correct
Option 2)
300
This option is correct
Option 3)
120
This option is incorrect
Option 4)
280
This option is incorrect
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