Chemical Kinetics | JEE Main 2025 | Catalyst Effect on Ea

JEE MAIN 2025

04-04-2025 SHIFT-1

Question

For $\mathrm{A}_2+\mathrm{B}_2 \rightleftharpoons 2 \mathrm{AB}$ ${{\rm{E}}_{\rm{a}}}$ for forward and backward reaction are 180 and $200\;{\rm{kJ}}\;{\rm{mo}}{{\rm{l}}^{ - 1}}$ respectively If catalyst lowers ${{\rm{E}}_{\rm{a}}}$ for both reaction by $100\;{\rm{kJ}}\;{\rm{mo}}{{\rm{l}}^{ - 1}}$.
Which of the following statement is correct?

Select the correct option:

Catalyst can cause non-spontaneous reactions to occur.

Catalyst does not alter the Gibbs energy change of a reaction

The enthalpy change for the catalysed reaction is different from that of uncatalysed reaction

The enthalpy change for the reaction is $ + 20\;{\rm{kJ}}\;{\rm{mo}}{{\rm{l}}^{ - 1}}$.

✓ Correct! Well done.

✗ Incorrect. Try again or view the solution.

Solution