How does kinetic energy relate to phase change?
When kinetic energy is increasing molecules are simply moving faster. However, when the potential energy is increasing molecules are changing phases. Therefore, when the potential energy is increasing is when the molecule is changing phases.
What happens to the kinetic energy of the molecules during a phase change?
During a change of phase, the average kinetic energy of the molecules stays the same, but the average potential energy changes.
How is kinetic energy and attraction forces responsible for phase changes?
If the average kinetic energy is greater than the attractive forces between the particles, a substance will not condense to form a liquid or a solid. If the kinetic energy is less than the attractive forces, a liquid or solid will form.
