KVV E-Modules

What happens to the rate of evaporation when the temperature increases?

A: Decreases B: Increases C: Remains the same D: Becomes zero

How does humidity affect the rate of evaporation?

A: Increases it B: Decreases it C: Has no effect D: Doubles it

Which factor increases the rate of evaporation?

A: High humidity B: Low temperature C: High wind speed D: Small surface area

What is the effect of surface area on the rate of evaporation?

A: Larger surface area decreases evaporation B: Larger surface area increases evaporation C: Smaller surface area increases evaporation D: Surface area has no effect

What happens to the rate of evaporation if the liquid is spread over a larger area?

A: It decreases B: It increases C: It remains the same D: It stops

Evaporation is defined as:

A: Conversion of solid into gas directly B: Conversion of liquid into vapour at any temperature below its boiling point C: Conversion of liquid into vapour at boiling point D: Conversion of vapour into liquid

Which of the following factors increases the rate of evaporation

A: Increase in surface area B: Increase in humidity C: Decrease in temperature D: Increase in intermolecular attraction

Which of the following daily life examples is related to effect of surface area on evaporation?

A: Clothes dry faster when spread out B: Ice melts faster in water C: Salt dissolves faster in hot water D: Metal expands on heating

In the surface area–evaporation experiment, water in which container will evaporate the slowest?

A: Beaker B: Petri dish C: Wide plate D: Test tube

Evaporation is a __________ process.

A: Surface phenomenon B: Bulk phenomenon C: Chemical reaction D: Nuclear process