The specific latent heat of vaporisation of water is about seven times larger than its specific latent heat of fusion.
Which statement explains this?
Boiling separates the particles completely, so much more energy is needed per kilogram
Boiling happens at a higher temperature, so the particles already have more energy
Water has a greater mass as a liquid than as a solid, so it needs more energy to boil
Steam has a higher specific heat capacity than ice, so it stores more energy per kilogram
44 exam-style questions on OCR GCSE Physics 1.2 Changes of state, covering 1.2.1 Conservation of mass during changes of state, 1.2.2 Physical and chemical changes, 1.2.3 Heating, temperature and changes of state, 1.2.4 Specific heat capacity and specific latent heat, 1.2.5 Internal energy and temperature change, and 1.2.6 Energy transfer during a change of state. Each one has a worked solution and a mark scheme showing where the marks go.