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2.2 Thermal properties and temperature

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Question 40

A beaker of water is left open in a room and some of the water evaporates.

Which statement about this process is correct?

A

The average kinetic energy of the remaining water molecules increases.

B

Evaporation occurs throughout the entire bulk of the liquid.

C

Increasing the exposed surface area of the liquid increases the rate of evaporation.

D

The rate of evaporation is independent of the temperature of the liquid.

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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