A liquid is evaporating at room temperature. Which statement correctly describes what happens to the remaining liquid molecules and where the escaping molecules leave from?
The average kinetic energy of the remaining molecules increases, and molecules escape from any part of the liquid.
The average kinetic energy of the remaining molecules decreases, and molecules escape from any part of the liquid.
The average kinetic energy of the remaining molecules increases, and molecules escape only from the surface of the liquid.
The average kinetic energy of the remaining molecules decreases, and molecules escape only from the surface of the liquid.
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.