In the presence of a catalyst, the heat evolved or absorbed during the reaction ___________.
(i) increases.
(ii) decreases.
(iii) remains unchanged.
(iv) may increase or decrease.
The answer is the option (iii). Catalyst only eases the threshold for a reaction without participating directly in it. So, it has no effect on heat evolved or absorbed during reaction.
The answer is the option (iii). Catalyst only eases the threshold for a reaction without participating directly in it. So, it has no effect on heat evolved or absorbed during reaction.