Science revision

Energy transfer in reactions

Chemistry revision

• Chemical reactions can either release or take in heat energy
• Combustion is an exothermic reaction, in this reaction heat is given out
• This is shown by a rise in temperature 
• An example of an exothermic reaction is burning fuels
• Doing this gives out masses of heat
• An endorthic reaction, heat is taken in
• This is shown in the fall in temperature
• These are less common because they're easier to spot
• An example of an endorthic reaction is thermal decomposition, this is when heat is supplied to the compound to cause…