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Precisely I'mole of helium and 1 mol of ...

Precisely I'mole of helium and 1 mol of neon are placed in a container. Indicate the correct statements about the system

A

Molecules of the two gases strike the wall of the container with same frequency.

B

Molecules of helium strike the wall more frequently

C

Molecules of helium have greater average molecular speed.

D

Helium exerts larger pressure.

Text Solution

Verified by Experts

The correct Answer is:
B, C

Helium gas has lower molecular mass and hence it moves faster than neon and strikes the wall more frequently , `mu_(av) = sqrt((8RT)/(pi M)) implies mu_(av) prop ((1)/(M))^(1//2)` . Hence , He has higher speed than neon .
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