An experiment is set up to measure the specific latent heat of vaporisation of water using a 1.5 kW heater. After the water begins to boil, 120 g of water is converted to steam in 180 s.
Using these results, what is the value of the specific latent heat of vaporisation of water?
2.25 J/kg2.25\text{ J/kg}2.25 J/kg
2250 J/kg2250\text{ J/kg}2250 J/kg
225 000 J/kg225\ 000\text{ J/kg}225 000 J/kg
2 250 000 J/kg2\ 250\ 000\text{ J/kg}2 250 000 J/kg
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.