Physics 0625 · IGCSE · Kinetic particle model of matter

Kinetic particle model of matter — practice question

A circular dish with a flat base contains $100\,\text{cm}^3$ of water. The students are asked to suggest ways to make the water evaporate more quickly. Their ideas are given below. Student 1: Transfer the water into a flat-bottomed dish with a greater diameter. Student 2: Reduce the temperature of the dish and the water. Student 3: Use a fan to set up an air current above the dish. Which of these suggestions would raise the evaporation rate?

  • A1, 2 and 3
  • B1 and 2 only
  • C1 and 3 only
  • D2 and 3 only

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