Question

Choose the correct option-

A liquid boils

• A. At a fixed temperature
• B. At all temperatures
• C. At different temperatures
• D. When it is heated

Answer 1

The correct option is A

At a fixed temperature

Correct option is A: At a fixed temperature

Explanation:

1. Water boils when its vapor pressure equals to atmospheric pressure at a specific temperature.
2. The molecules of the liquid must overcome their attraction to produce a vapor.
3. Even if extra heat is supplied, the boiling temperature of a liquid stays constant.

Hence, option A is the correct answer