Distinguish between exothermic and endothermic reaction. Amongst the following reactions, identify the exothermic and endothermic reaction:
(i) Heating coal in the presence of air to form carbon dioxide.
(ii) Heating limestone in lime kiln to form quick lime.

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Solution

Exothermic reactions are those reactions in which heat is evolved. Whereas endothermic reactions are those which involve absorption of heat.

(i) Heating coal in the presence of air to form carbon dioxide is an exothermic reaction.

(ii) Heating limestone in a lime kiln to form quick lime is an endothermic reaction.

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Distinguish between exothermic and endothermic reaction. Amongst the following reactions, identify the exothermic and endothermic reaction: (i) Heating coal in the presence of air to form carbon dioxide. (ii) Heating limestone in lime kiln to form quick lime.

Distinguish between exothermic and endothermic reaction. Amongst the following reactions, identify the exothermic and endothermic reaction:
(i) Heating coal in the presence of air to form carbon dioxide.
(ii) Heating limestone in lime kiln to form quick lime.