Physics path · GCSE Physics

Can you finish a wax latent-heat calculation correctly?

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Practice question

Specific latent heat is the energy required to change the state of 1 kg of a substance without changing its temperature. A wax workshop supplies 47,532 J to a 0.218 kg sample of solid casting wax while it melts at constant temperature. Determine the specific latent heat of the wax in J/kg. Give your answer to 3 significant figures.

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Official curriculum

4.3.2.3 Changes of state and specific latent heat

This challenge practises knowledge and exam skills from the official GCSE science curriculum. Use these sources to see the exact subject content and its wider Key Stage 4 context.

AQA specification 4.3.2.3 Changes of state and specific latent heat GOV.UK Key Stage 4 science programme

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