Question

Explain the factors affecting evaporation define the cooling affects of evaporation

Answer 1

Factors affecting evaporation - 1. Concentration of substances evaporating in the air
2. Flow rate of air
3. Inter-molecular forces
4. Surface area
5. Pressure
6. Temperature of the substance
 
Cooling affects of evaporation - Evaporation is an endothermic process, it                                                                uses surrounding heat and so has a cooling effect. Any surface that has an evaporating liquid on it is cooler than its surroundings. In an air conditioner gases are liquefied so they'll evaporate very fast at room temperature, making the place become cooler .

Answer 2

The change of liquid into its vapour form at any temperature point is called as evaporation. Evaporation is a surface phenomena.

» The conditions that increases the rate of evaporation are :-

→ Increase in Temperature :- The increase in temperature makes evaporation faster.

→ Increase in Surface area :- Increasing the surface area also makes evaporation faster.

→ Increase in wind speed :- Increasing the wind speed increases evaporation rate.

→ Decreasing humidity :- Decreasing humidity increases the rate of evaporation for water.