C7-Energy transfer in reactions!
- Created by: 94Y86
- Created on: 15-05-12 08:44
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ENERGY TARNSFER IN REACTION
there are two types of reactions, EXOTHERMIC AND ENDOTHERMIC REACTIONS.
EXOTHERMIC
- gives out energy to the surroundings usually in the form of heat
- an exothermic reaction can be found be an increase in temperature
- a way of remembering this is:
- EXO- exit
- THERMIC- heat
- meaning that heat exits the reaction.
EXAMPLE:
- fossil fuels burning
- neutralisation reactions
ENDOTHERMIC
- Takes in energy from the surrondings usually in the form of heat
- an endothermic reaction is usually seen by a decrease in temperature
- there is no obvious way of remembering this one but if u make sure u understand EXOTHERMIC REACTIONS you will easily understand ENDOTHERMIC because its the opposite.
EXAMPLE:
- Photothenisis
ENERGY LEVEL DIAGRAMS
Exothermic:
- in an Exothermic reaction the products are always below the reactants this is because it gives out energy…
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