Endothermic&Exothermic

Created by: **.tilly.**
Created on: 06-03-14 09:40

What is an exothermic reaction?

These are reactions that transfer energy to the surroundings. The energy is usually transferred as heat energy, causing the reaction mixture and its surroundings to become hotter. The temperature increase can be detected using a thermometer.

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Name some examples of an exothermic reaction

Combustion and explosions

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What is an endothermic reaction?

These are reactions that take in energy from the surroundings. The energy is usually transferred as heat energy, causing the reaction mixture and its surroundings to get colder. The temperature decrease can also be detected using a thermometer.

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Name some examples of endothermic reactions?

Electrolysis,Photosynthesis and thermal decomposition

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What happens to energy when bonds are being broken?

Energy is absorbed to break bonds. Bond-breaking is an endothermic process.

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What happens to energy when bonds are being made?

Energy is released when new bonds form. Bond-making is an exothermic process

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Other cards in this set

Card 2

Front

Name some examples of an exothermic reaction

Back

Combustion and explosions

Card 3

Front

What is an endothermic reaction?

Back

Card 4

Front

Name some examples of endothermic reactions?

Back

Card 5

Front

What happens to energy when bonds are being broken?

Back

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Endothermic&Exothermic