When the most energetic molecules escape from the surface of a liquid during evaporation, how are the average kinetic energy of the remaining molecules and the temperature of the liquid affected?
The average kinetic energy decreases, and the temperature decreases.
The average kinetic energy decreases, and the temperature increases.
The average kinetic energy increases, and the temperature decreases.
The average kinetic energy increases, and the temperature 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.