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2.2.3a Melting, boiling, condensation and solidification

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Question 61

A porous clay pot filled with water is used to keep the water cool in hot weather. Some water seeps through the clay to the outer surface of the pot and evaporates.

Which molecules escape from the water during evaporation, and what happens to the average speed of the water molecules that remain on the surface?

A

the more energetic ones | decreases

B

the more energetic ones | increases

C

the less energetic ones | decreases

D

the less energetic ones | 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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