Year 12 Unit 3 Area of Study 1

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Answer the question:

D

Define what is meant by an exothermic reaction.

An exothermic reaction is a reaction that releases energy into the surroundings resulting in a net negative change in enthalpy.

Define what is meant by an endothermic reaction.

An endothermic reaction is a reaction that absorbs energy from the surroundings resulting in a net positive change in enthalpy.

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