Cambridge IGCSE Chemistry practice

Paper 3 structured question: Exothermic and endothermic reactions

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Exothermic and endothermic reactions

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Paper 3Theory (Core)1 marks

Understanding the characteristics of endothermic reactions is crucial for studying thermodynamics.

Description

Endothermic reactions absorb heat, resulting in a temperature drop in the surroundings. They have a positive enthalpy change.

a
State one characteristic of an endothermic reaction.
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[1]

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Paper 3Theory (Core)1 marks

Description

When ammonium nitrate is dissolved in water, the temperature of the solution decreases, indicating an endothermic reaction.

a
State the effect of an endothermic reaction on the temperature of the surroundings.
Your answer
Aim for approximately 1 distinct marking point.
[1]