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System, Surroundings, Intensive, Extensive Properties

In which case...

Question

In which case mean free path is not affected?

A

H_{2}

gas at

100^{0} C

and

1 a t m

is transferred into a vessel at

50^{0} C

and

0.5 a t m

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B

O_{2}

gas at

200 K

and

2 a t m

is transferred into a vessel at

400 K

and

1 a t m

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C

O_{2}

gas is replaced by

H_{2}

gas keeping other variables constant

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D

Medium is made more viscous

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Solution

The correct option is C $H_{2}$ gas at $100^{0} C$ and $1 a t m$ is transferred into a vessel at $50^{0} C$ and $0.5 a t m$
$H_{2}$ gas at $100^{0} C$ and $1 a t m$ is transferred into a vessel at $50^{0} C$ and $0.5 a t m$ .
in this case $\frac{P}{T} =$ constant.
In this case mean free path not affected.

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