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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.

Answers (2)

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.

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infoexpert23

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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.

Posted by

infoexpert23

View full answer