IB Physics HL B.1.6 Internal energy
IB Physics HL B.1.6 Internal energy
Compare internal energy in solids and liquids at one temperature, using phase-change reasoning about kinetic and potential energy.
How this is tested
- state that at equal temperature kinetic energy is unchanged; phase changes alter potential energy
- decide that melting raises internal energy and intermolecular potential energy, while freezing lowers both