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Which of the following statements is not...

Which of the following statements is not correct ?

A

1. Lighter gases diffuse faster than heavier gases.

B

2. The volume of a gas always increases when the temperature increases.

C

3. Molecules of different gases have the same average kinetic energy at given temperature

D

4. Hydrogen molecules diffuse faster in a vacuum than in air

Text Solution

Verified by Experts

The correct Answer is:
B
This is true only when pressure is constant
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