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AQA Chemistry C5

Terms in this set (14)

Exothermic reaction
A reaction that gives out energy to the surroundings
Endothermic reaction
A reaction that takes in energy from the surroundings
Diagram of exothermic reaction profile
Diagram of endothermic reaction profile
Reversible reaction
A reaction that can go forwards and backwards
Activation energy
The minimum amount of energy required for a reaction to take place
Energy level diagram
Reaction Profile. A diagram showing the relative energies of the reactants and products of a reaction, the activation energy and the overall energy change of all the reaction.
Reaction profile
Energy level diagram. A diagram showing the relative energies of the reactants and products of a reaction, the activation energy and the overall energy change of all the reaction.
Catalyst
A substance that increases the rate of a chemical reaction without being changes or used up itself.
Diagram of the effect of a catalyst
Temperature change during exothermic reactions
Increase
Temperature change during endothermic reactions
Decrease
Example of an exothermic reaction
Combustion, neutralistion
Example of an endothermic reaction
Thermal decomposition
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