Question

The evaporation of water increases under the following conditions :

Options

• increase in temperature, decrease in surface area

•  increase in surface area, decrease in temperature

• increase in surface area, rise in temperature

• increase in temperature, increase in surface area, addition of common salt

Answer 1

increase in surface area, rise in temperature

When surface area increases and temperature rises, evaporation of water increases because the area which is exposed to the outer atmosphere is more and increasing the temperature leads to increase in the kinetic energy, due to which rate of evaporation increases.