Question

What happens to the rate of evaporation of water, if the atmospheric pressure is increased during the extraction of the colored component from liquid?

• A. Increases
• B. Decreases
• C. Do not change
• D. None

Answer 1

Answer: (B)

Decreases

Evaporation is a surface phenomenon in which surface molecules of solution moves to the atmosphere.If atmospheric pressure is increased then due to external pressure molecules on the surface will not move to the atmosphere so if atmospheric pressure increases, a rate of evaporation decreases.