Question

GIVE REASONS

1. Even though rusting is an exothermic reaction, the heat energy evolved when an iron nail rusts is unnoticeable. why?
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Answer 1

Answer:

Rusting of iron – the reaction is slow and the heat evolved is very less, hence unnoticeable.

Answer 2

Answer:

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Explanation:

Even though rusting is an exothermic reaction, the heat evolved when an iron nail rusts is unnoticeable. Answer: Rusting of iron – the reaction is slow and the heat evolved is very less, hence unnoticeable. Electrolytic decomposition of water is a reaction involving change of state