Boiling Point:

The temperature at which a liquid changes into its gaseous form is called the boiling point.

Explanation:

When a liquid is heated, the kinetic energy of its molecules increases. At a certain temperature, the kinetic energy of the molecules becomes sufficient to overcome the intermolecular forces holding the liquid together. At this point, the liquid starts to turn into its gaseous form, which is called vaporization. The temperature at which this happens is called the boiling point.

Factors Affecting Boiling Point:

The boiling point of a liquid depends on various factors such as:

1. Pressure: The boiling point of a liquid decreases with a decrease in pressure and increases with an increase in pressure.

2. Intermolecular Forces: The boiling point of a liquid increases with an increase in intermolecular forces.

3. Molecular Size: The boiling point of a liquid increases with an increase in molecular size.

Importance of Boiling Point:

The boiling point of a liquid is an important physical property used to identify and classify liquids. It also plays a crucial role in various industrial processes such as distillation, fractional distillation, and steam generation.

Conclusion:

In conclusion, the boiling point is the temperature at which a liquid changes into its gaseous form. It depends on various factors such as pressure, intermolecular forces, and molecular size. The boiling point is an important physical property and plays a crucial role in various industrial processes.

Boiling point is the answer . It is because boiling point is a particular temp. at which a liquid starts changing into gas at the atmospheric pressure .