Lesson: Chapter 9 — Heat

Putting the chapter together 2 of 3 Reset answers

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Question 2

A heating curve of wax is flat at 55 °C. What is happening then?

A The thermometer has broken B The wax is boiling C The heat has stopped D The wax is melting, taking in latent heat

The right answer is the one marked above.

The wax is melting, taking in latent heat. 55 °C is its melting point.

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