Memory Anchor:

• Super Challenge:

  Stretch:

  Challenge:

Key Questions:

1. What is the equation used to calculate the energy for a change of state? Include units in your response.
   • (MS) Energy for a change of state = mass ? specific latent heat E = m L Energy, E, in joules, J mass, m, in kilograms, kg specific latent heat, L, in joules per kilogram, J/kg
2. What is meant by the term specific heat of fusion? Give an example to show what this means.
   • Specific latent heat of fusion is the change of state from solid to liquid for instance ice melting to water
3. What is the difference between specific heat capacity and specific latent heat?
   • Specific heat capacity is the amount of Energy needed to raise the temperature of a substance by 1 degree. specific latent heat is the amount of Energy needed to change the state of a substance.
4. What is meant by the term specific heat of fusion? Give an example to show what this means.
   • Specific latent heat of vaporisation is the change of state from liquid to vapour. For example liquid water to steam.