Question

Difference between volatility and boiling and evaporation?

Answer 1

Vaporization is a process of phase transition in which a substance, changes its state from liquid to vapour. It can take place in two ways, i.e. evaporation and boiling. The process of evaporation involves phase transition at a temperature below the boiling temperature. On the other hand, boiling of a substance takes place at boiling point, which may vary with the change in the environmental pressure.
Water boils at 100°C, and the temperature does not rise even if heat is continuously supplied to it. As against, the rate of evaporation depends on the surface area, in the sense that the larger the area, the faster would be the process. Let’s take a look at the article provided below which simplifies the difference between boiling and evaporation.​​​​​​


Volatility is essentially the tendency of a liquid to evaporate. So a highly volatile liquid would show a great tendency to evaporate.