A 60 W heater transfers all its energy to a 0.40 kg aluminium block for 240 s. The block starts at 20 ∘C20\ ^\circ\mathrm{C}20 ∘C and remains solid throughout. The specific heat capacity of aluminium is 900 J kg−1 ∘C−1900\ \mathrm{J\,kg^{-1}\,{}^\circ C^{-1}}900 Jkg−1∘C−1.
Calculate the final temperature of the block.
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.