A solid block of ice at 0∘C0^\circ\text{C}0∘C is melting on a laboratory bench, while a beaker of pure ethanol is boiling at 78∘C78^\circ\text{C}78∘C on a hot plate. The ambient room temperature is 20∘C20^\circ\text{C}20∘C.
What is happening to the temperature of the melting ice and the temperature of the boiling ethanol?
Temperature of melting ice: constant; Temperature of boiling ethanol: constant
Temperature of melting ice: constant; Temperature of boiling ethanol: increasing
Temperature of melting ice: increasing; Temperature of boiling ethanol: constant
Temperature of melting ice: increasing; Temperature of boiling ethanol: increasing
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.