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2.2 Thermal properties and temperature

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Question 400

A wide tray contains 150 cm3 of water. Students are asked how to decrease the rate at which the water evaporates. Their suggestions are listed:

  • student 1: Place the tray inside a draft-free, closed cupboard.
  • student 2: Pour the water into a taller, narrower beaker.
  • student 3: Gently warm the water with a heating pad.

Which suggestions will decrease the rate of evaporation?

A

1 and 2 only

B

1 and 3 only

C

2 and 3 only

D

1, 2 and 3

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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