During the process of evaporation, some molecules escape from the surface of a liquid, causing its temperature to change.
Which row correctly describes the energy of the escaping molecules and the change in the average kinetic energy of the molecules remaining in the liquid?
Energy of escaping molecules: high; Average kinetic energy of remaining molecules: decreases
Energy of escaping molecules: high; Average kinetic energy of remaining molecules: increases
Energy of escaping molecules: low; Average kinetic energy of remaining molecules: decreases
Energy of escaping molecules: low; Average kinetic energy of remaining molecules: increases
528 exam-style questions on CIE IGCSE Physics 2.2 Thermal properties and temperature, covering 2.2.1 Thermal expansion of solids, liquids and gases, 2.2.2a Internal energy and temperature, 2.2.2b Specific heat capacity, 2.2.3a Melting, boiling, condensation and solidification, 2.2.3b Evaporation, and 2.2.3c Cooling by evaporation. Each one has a worked solution and a mark scheme showing where the marks go.