What is exothermic and an endothermic reaction?
Amongst the following reactions, identify the exothermic reaction and the endothermic reaction:
1. Heating coal in air to form carbon dioxide.
2. Heating limestone in lime kiln to form quick lime. [3 MARKS]

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Solution

Each point: 1 Mark

1. Exothermic reactions are those reactions in which heat is evolved. Endothermic reactions are those which involve absorption of heat.

2. Heating coal in air to form carbon dioxide is an exothermic reaction.

3. Heating limestone in a lime kiln to form quick lime is an endothermic reaction.

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What is exothermic and an endothermic reaction? Amongst the following reactions, identify the exothermic reaction and the endothermic reaction: 1. Heating coal in air to form carbon dioxide. 2. Heating limestone in lime kiln to form quick lime. [3 MARKS]

What is exothermic and an endothermic reaction?
Amongst the following reactions, identify the exothermic reaction and the endothermic reaction:
1. Heating coal in air to form carbon dioxide.
2. Heating limestone in lime kiln to form quick lime. [3 MARKS]