Physics · May / June 2022 · Paper 12 · Question 23
5054Melting, boiling and evaporation
A hairdryer is used to blow air across the surface of water in a beaker so that the water evaporates. What increases the rate of evaporation of the water?
- Adecreasing the speed of the air from the hairdryer
- Bdecreasing the mass of the water in the beaker
- Cincreasing the surface area of the water by using a wider beaker
- Dincreasing the volume of the water in the beaker
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Correct answer: C. increasing the surface area of the water by using a wider beaker
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