CBSE Class 12 · 2001 · Delhi Compartment · Chemical KineticsShort Answer

Which aspect of a reaction is influenced by the presence of a catalyst — the rate, or the possibility of the reaction?

Solution

A catalyst influences only the rate of a reaction.
It lowers the activation energy by providing an alternative path, so a thermodynamically feasible reaction proceeds faster; it cannot alter

Δ G

and so cannot make an infeasible reaction possible.

CBSE Class 12 Board · 2001 · Delhi Compartment · Subjective

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