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Question : At the boiling point of liquids, its

Option 1: temperature increases

Option 2: atmospheric pressure increases

Option 3: temperature remains constant

Option 4: vapour pressure decreases


Team Careers360 2nd Jan, 2024
Answer (1)
Team Careers360 21st Jan, 2024

Correct Answer: temperature remains constant


Solution : The correct option is temperature remains constant.

Even when heat is repeatedly applied to a liquid at its boiling point, its temperature stays constant. Instead of raising the temperature of the liquid, the extra heat is used to convert it to vapour during boiling. The energy is used to dissolve the intermolecular interactions that hold liquid molecules together, enabling them to escape into the gas phase. As a result, the liquid's temperature remains constant until the entire liquid has vaporized.

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