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Physics · Oct / Nov 2023 · Paper 11 · Question 15

5054Melting, boiling and evaporation

A graph of temperature against time is shown for a material being heated from its solid state. Which row describes what is happening at X, Y and Z?

  1. Aboiling | solid becomes hotter | melting
  2. Bliquid becomes hotter | boiling | gas becomes hotter
  3. Csolid becomes hotter | melting | liquid becomes hotter
  4. Dmelting | liquid becomes hotter | boiling

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Correct answer: D. melting | liquid becomes hotter | boiling

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