If reaction between nitrogen and hydrogen to form ammonia is exothermic, then it will be accompanied by:

Change in state

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Evolution of heat

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Formation of precipitate

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Change in colour

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Solution

The correct option is B
Evolution of heat

Exothermic reactions are accompanied by evolution of heat.

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Similar questions

Assertion: Nitrogen and hydrogen combine together to form ammonia and heat.
Reason: It is an exothermic reaction.

Statement 1: Nitrogen and hydrogen combine together to form ammonia.
Statement 2: It is an exothermic reaction.

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