Energetics

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  • Created by: Abbeyx
  • Created on: 11-10-15 15:19
What is an exothermic reaction?
A reaction that gives out heat energy.
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What is an endothermic reaction?
A reaction that takes in heat energy.
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What is the temperature change in an exothermic reaction?
Rise of temperature
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What is the temperature change in an endothermic reaction?
Fall in temperature
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Examples of exothermic reactions
Neutralisation, displacement, combustion, respiration, magnesium + sulfuric acid
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Examples of endothermic reactions
Thermal decomposition, photosynthesis, dissolving of salts, sodium hydrogen carbonate + citric acid
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What is enthalpy change?
The amount of heat energy change
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What is the enthalpy change for an exothermic reaction?
Negative
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What is the enthalpy change for an endothermic reaction?
Positive
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Is formation of new bonds endothermic or exothermic?
Exothermic
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Is breaking of bonds endothermic or exothermic?
Endothermic
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Other cards in this set

Card 2

Front

What is an endothermic reaction?

Back

A reaction that takes in heat energy.

Card 3

Front

What is the temperature change in an exothermic reaction?

Back

Preview of the front of card 3

Card 4

Front

What is the temperature change in an endothermic reaction?

Back

Preview of the front of card 4

Card 5

Front

Examples of exothermic reactions

Back

Preview of the front of card 5
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