Note AcademyNote Academy
Start

Physics · May / June 2025 · Paper 11 · Question 16

5054Melting, boiling and evaporation

When a liquid evaporates, molecules escape from its surface. Which molecules escape, and what happens to the average kinetic energy of the molecules remaining in the liquid?

  1. AThe less energetic molecules escape and the average kinetic energy decreases.
  2. BThe less energetic molecules escape and the average kinetic energy increases.
  3. CThe more energetic molecules escape and the average kinetic energy decreases.
  4. DThe more energetic molecules escape and the average kinetic energy increases.

As printed in the paper

Show the answer

Correct answer: C. The more energetic molecules escape and the average kinetic energy decreases.

Sit this whole paper →More on Melting, boiling and evaporation

Make a free account to save your answers and see your weak topics and ask the AI why a wrong answer is wrong.

Also set in