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Liquefaction of Gases and Critical Constants

The value of ...

Question

The value of $\frac{R T}{P V}$ for a gas at critical condition is how many times of $\frac{R T}{P V}$ at normal condition?

A

\frac{8}{3}

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B

\frac{3}{8}

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C

3

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D

\frac{1}{3}

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Solution

The correct option is A $\frac{8}{3}$
At the critical temperature and pressure,
$P_{c} V_{c} = \frac{3}{8} R T_{c}$
i.e., $\frac{8}{3}$ times of $\frac{R T}{P V}$ at normal condition.

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