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
313 exam-style questions on CIE IGCSE Physics 2.2.3a Melting, boiling, condensation and solidification. Each one has a worked solution and a mark scheme showing where the marks go.