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Question : Which of the following is correct regarding the heating of the air?

I. It expands and occupies more space.
II. It becomes heavier on heating.

Option 1: Only I

Option 2: Neither I nor II

Option 3: Both I and II

Option 4: Only II


Team Careers360 4th Jan, 2024
Answer (1)
Team Careers360 16th Jan, 2024

Correct Answer: Only I


Solution : The correct option is Only I .

Heat causes the molecules in the air to gain kinetic energy, which makes them travel faster and causes the air to expand. The volume that the air occupies grows as a result. This expansion is frequently seen in a variety of atmospheric and laboratory situations and is a basic principle of thermodynamics.

Statement II is incorrect since air often gets lighter per volume when it gets heated. This is because, in comparison to colder air, warmer air has a lower density (mass per unit volume).

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