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2.2 Thermal properties and temperature

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Question 381

Which statement about the evaporation and boiling of a liquid is correct?

A

Both processes occur only at a single, fixed temperature.

B

Evaporation occurs at any temperature, whereas boiling occurs only at a specific temperature.

C

Boiling occurs only at the surface of the liquid, whereas evaporation occurs throughout the liquid.

D

Evaporation requires a rapid supply of external heat, whereas boiling occurs spontaneously without any energy transfer.

Markscheme

2.2 Thermal properties and temperature Questions

  1. IGCSE
  2. /Physics
  3. /2.2 Thermal properties and temperature

528 exam-style questions on CIE IGCSE Physics 2.2 Thermal properties and temperature, covering 2.2.1 Thermal expansion of solids, liquids and gases, 2.2.2a Internal energy and temperature, 2.2.2b Specific heat capacity, 2.2.3a Melting, boiling, condensation and solidification, 2.2.3b Evaporation, and 2.2.3c Cooling by evaporation. Each one has a worked solution and a mark scheme showing where the marks go.

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