1 Heat of precipitation, ∆H

Set up of apparatus

Initial temperature of AgNO3 28.0Initial temperature of NaCl 27.0Highest temperature 31.5

1. Chemical equation2. Ionic equation

3. No. moles, x =mv/1000

No mole, Ag+ = No mole, Cl- =

4. Heat changes,H =mc∆Ө

5. ∆H= H/x

6. Energy level diagram

2 Heat of displacement,, ∆H

Set up of apparatus

Initial temperature of CuSO4 , oC 28.0Highest temperature, oC

1. Chemical equation2. Ionic equation

3. No. moles, x =mv/10004. Heat changes,H =mc∆Ө

5. ∆H= H/x ∆H = -199.5 kJ mol-1

6. Energy level diagram

25cm3 CuSO4 0.2 mol dm-3

0.5 g zinc

3 Heat of neutralisation, ∆H

Set up of apparatus

1. Chemical equation2. Ionic equation3. No. moles, x =mv/1000

No mole, H+ = No mole, OH- =

4. Heat changes,H =mc∆Ө

5. ∆H= H/x

6. Energy level diagram

4 Heat of combustion, ∆H

Set up of apparatus

Mass of spirit lamp + ethanol before

26.33g

Mass of spirit lamp + ethanol after

25.50g

Initial temperature 29.0 oCFinal temperature 59.0 oC

1. Chemical equation2. Ionic equation3. No. moles, x =mv/1000

4. Heat changes,H =mc∆Ө

5. ∆H= H/x

6. Energy level diagram