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2.2.3a Melting, boiling, condensation and solidification

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Question 149

During the process of evaporation, high-energy molecules escape from the surface of a liquid. What happens to the average kinetic energy of the remaining molecules and the temperature of the remaining liquid?

A

Average kinetic energy decreases; temperature decreases.

B

Average kinetic energy decreases; temperature increases.

C

Average kinetic energy remains the same; temperature decreases.

D

Average kinetic energy remains the same; temperature increases.

Markscheme

2.2.3a Melting, boiling, condensation and solidification Questions

  1. IGCSE
  2. /Physics
  3. /2.2.3a Melting, boiling, condensation and solidification

313 exam-style questions on CIE IGCSE Physics 2.2.3a Melting, boiling, condensation and solidification. Each one has a worked solution and a mark scheme showing where the marks go.

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