A copper saucepan base has a mass of 600 g. After cooking, it is left on a rack and cools from 160 ∘C160\ ^\circ\mathrm{C}160 ∘C to 40 ∘C40\ ^\circ\mathrm{C}40 ∘C. Copper has a specific heat capacity of 385 J kg−1 ∘C−1385\ \mathrm{J\,kg^{-1}\,{}^\circ C^{-1}}385 Jkg−1∘C−1. How much energy does the base transfer to its surroundings as it cools? The equation ΔQ=mcΔθ\Delta Q=mc\Delta\thetaΔQ=mcΔθ may be useful.
9 240 J9\,240\ \mathrm{J}9240 J
27 720 J27\,720\ \mathrm{J}27720 J
36 960 J36\,960\ \mathrm{J}36960 J
46 200 J46\,200\ \mathrm{J}46200 J
110 exam-style questions on Edexcel GCSE Physics 14.2 Specific heat capacity and latent heat, covering 14.2.1 Heating, temperature and changes of state, 14.2.2 Specific heat capacity and specific latent heat, 14.2.3 Specific heat capacity calculation, 14.2.4 Specific latent heat calculation, and 14.2.5 Reducing energy transfer through thermal insulation. Each one has a worked solution and a mark scheme showing where the marks go.