A small spill of ethanol forms a thin layer on a glass laboratory bench. Later on, the bench is found to be completely dry.
Which process caused the ethanol to disappear?
In terms of molecules, describe how this process occurs.
When this process occurs, the temperature of the remaining liquid decreases. In terms of molecules, explain why this cooling occurs.
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.