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2.2 Thermal properties and temperature

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Question 332

During evaporation, particles escape from the surface of a liquid. Which of the following statements correctly explains how this process affects the remaining liquid?

A

The most energetic particles escape, decreasing the average kinetic energy of the remaining liquid and lowering its temperature.

B

The least energetic particles escape, increasing the average kinetic energy of the remaining liquid and raising its temperature.

C

The most energetic particles escape, increasing the average kinetic energy of the remaining liquid and lowering its temperature.

D

The least energetic particles escape, decreasing the average kinetic energy of the remaining liquid and lowering its temperature.

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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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