Question

How does the boiling of a liquid differ from its evaporation?

a) Boiling occurs only at the liquid's surface, while evaporation occurs throughout the liquid.
b) Boiling occurs at a specific temperature, while evaporation can occur at any temperature.
c) Boiling involves the formation of bubbles within the liquid, while evaporation does not produce bubbles.
d) Boiling requires external heating, while evaporation occurs due to heat energy from the surroundings.

Answer 1

Boiling occurs at a specific temperature with the formation of gas bubbles throughout the liquid, whereas evaporation can occur at any temperature and only at the liquid's surface.The correct answer is option B.

Step-by-step explanation:

The difference between the boiling of a liquid and its evaporation can be explained as follows: Boiling is the process that occurs when a liquid becomes a gas at its boiling point, which is the temperature at which the vapor pressure of the liquid is equal to the external pressure.

During boiling, bubbles of gas form throughout the liquid because the molecules all throughout it have gained enough kinetic energy to vaporize. In contrast, evaporation involves the process of a liquid turning into vapor below the boiling temperature.

In evaporation, molecules with enough energy to enter the gas phase can do so at the surface of the liquid, and this can happen at a range of temperatures including room temperature.

In conclusion, the correct difference is: b) Boiling occurs at a specific temperature, while evaporation can occur at any temperature.