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

Question

Precisely 1 mol 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

Tardigrade Admin · Accepted Answer

Hint: Helium gas has lower molecular mass and hence it moves faster than neon and strikes the wall more frequently μ av =√(8 R T/π M) μ av propto((1/M))1 / 2 Hence, He has higher speed than neon

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

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

Molecules of helium strike the wall more frequently

Molecules of helium have greater average molecular speed

Helium exerts larger pressure

Hint: Helium gas has lower molecular mass and hence it moves faster than neon and strikes the wall more frequently
$μ_{a v} = \frac{8 RT}{π M}$
$μ_{a v} \propto (\frac{1}{M})^{1/2}$
Hence, He has higher speed than neon

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

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

Molecules of helium strike the wall more frequently

Molecules of helium have greater average molecular speed

Helium exerts larger pressure

Hint: Helium gas has lower molecular mass and hence it moves faster than neon and strikes the wall more frequently μav​=πM8RT​​ μav​∝(M1​)1/2 Hence, He has higher speed than neon

Hint: Helium gas has lower molecular mass and hence it moves faster than neon and strikes the wall more frequently
$μ_{a v} = \frac{8 RT}{π M}$
$μ_{a v} \propto (\frac{1}{M})^{1/2}$
Hence, He has higher speed than neon