Question

Which of the following are the differences between evaporation and vaporization?
This question has multiple correct options.
(A). Evaporation occurs at all temperatures but vaporization occurs at fixed temperature only.
(B). Evaporation is a slow and gradual process whereas vaporization is a rapid and violent process.
(C). Evaporation takes place only at the surface of the liquid whereas vaporization takes place over the entire liquid.
(D). Evaporation happens all the time in a day whereas vaporization happens only once a day.

Answer 1

Hint – In order to find out the differences between evaporation and vaporization, we study their definitions and their properties.

Complete step-by-step solution -
Vaporization:
- Vaporization is defined as the transitional phase of a compound or an element and it occurs during the boiling or sublimation process.
- Vaporization can change the state of matter from a solid or liquid to a gas.
- Vaporization is usually a fast process and requires less amount of energy.
- During vaporization, all of the water can turn into gas.
- When vaporization occurs, molecules could come from below the surface when the liquid is boiling.

Evaporation:
- Evaporation is nothing but a type of vaporization which mostly occurs at temperatures below the boiling point.
- During evaporation, the liquid state of matter is turned directly into a gas.
- Evaporation is generally a slower process and requires more energy as the molecules have a high tendency to convert into the vapor phase.
- As for evaporation, only the top level of water is turned into gas.
- During evaporation, the molecules vaporize only from the surface of the liquid.

Hence Options A, B and C are correct answers.

Note – In order to solve this type of problem the key is to understand all the terms in the given and the choices. It is important to read the question carefully, it said it can have multiple answers.
Evaporation is a form of vaporization. Vaporization is of two types, evaporation which is a surface phenomenon and boiling which is a bulk phenomenon.
Drying clothes under the sun is one of the most common examples of evaporation phenomenon and boiling of water to form steam is a good example of boiling phenomenon.