Steam at a temperature of 100∘C100^\circ\text{C}100∘C is piped into a container of water at room temperature, where the steam begins to condense.
What happens to the temperature of the condensing steam and what happens to the temperature of the water in the container while this condensation is occurring?
Steam temperature: decreases; Water temperature: increases
Steam temperature: stays constant; Water temperature: increases
Steam temperature: decreases; Water temperature: stays constant
Steam temperature: stays constant; Water temperature: stays constant
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.