#P1.2a
describe how mass is conserved when substances melt, freeze, evaporate, condense or sublimate
#P1.2b
describe that physical changes differ from chemical changes because the material recovers its original properties if the change is reversed
#P1.2c
describe how heating a system will change the energy stored within the system and raise its temperature or produce changes of state
#P1.2d
define the term specific heat capacity and distinguish between it and the term specific latent heat
specific latent heat of fusion and specific latent heat of vaporisation
#P1.2e
apply the relationship between change in internal energy of a material and its mass, specific heat capacity and temperature change to calculate the energy change involved
#P1.2f
apply the relationship between specific latent heat and mass to calculate the energy change involved in a change of state