Question

What will happen to the boiling point of a liquid, when we increase the pressure?

• A. The boiling point remains the same.
• B. The boiling point increases.
• C. The boiling point decreases.
• D. The boiling point either increases or decreases.

Answer 1

The correct option is B

The boiling point increases.

The boiling point of a liquid increases with increase in pressure and decreases with decrease in pressure.
When we increase pressure, molecules come closer to each other i.e. the intermolecular distance decreases. Hence, molecules will require more energy to overcome this and therefore the boiling point of the liquid will increase.