Question

Which of the following option correctly differentiates between evaporation and boiling of water?

• A. Evaporation takes place only at ${100}^{\circ }\text{C}$.
• B. Evaporation takes place at a temperature below ${100}^{\circ }\text{C}$.
• C. Evaporation takes place only above ${100}^{\circ }\text{C}$.
• D. Both evaporation and boiling are same.

Answer 1

The correct option is B Evaporation takes place at a temperature below ${100}^{\circ }\text{C}$.

Evaporation is the process by which a liquid is converted into vapour at any temperature below the boiling point of the liquid. It is a surface phenomenon. A common example of evaporation is drying of wet clothes.
Whereas, boiling is a bulk phenomenon occuring at a certain temperature called the boiling point. For example, water has a boiling point of ${100}^{\circ }\text{C}$.