4.11 describe simple calorimetry experiments for reactions such as combustion, displacement, dissolving and neutralisation in which heat energy changes can be calculated from measured temperature changes

NOTE: THIS IS SO CONFUSING I DON'T UNDERSTAND WHATS GOING ON the only example/explanation for this I could find was in the CGP revision guide but I still don't understand it so will defiantly be coming back to this post to edit it after i have finished the spec, if anyone knows how to do it or has any info or anything please comment it and I will add it to the post!

Combustion
This is basically the same method as 2.32 of the biology spec but with fuel not food... to measure the amount of energy produced when a fuel is burnt, just burn the fuel and use the flame to heat up some water...

- Put 50g of water into a copper can (because copper is a very good conductor of heat)
- Record the temperature of the water
- Weigh the spirit burner and lid (the spirit burner contains the fuel)
- Place the spirit burner underneath the copper can and light its wick.
- Stir constantly until the water reaches about 50ºC
- Put the flame out using the burner lid
- Record the final temperature of the water
- Weigh the spirit burner and lid again
- calculate the enthalpy change

Your setup should look something like this...

NOTE: the draught shield is just there to ensure no/little heat escapes

Dissolving, displacement and neutralisation reactions