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Ammonia

For the non-z...

Question

For the non-zero volume of the molecules, real gas equation for $n$ mole of the gas will be:

A

[P + \frac{a}{V^{2}}] V = R T

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B

P V = n R T + n b P

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C

P (V - n b) = n R T

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D

Both

B

and

C

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Solution

The correct option is D Both $B$ and $C$
For $n$ mole of a real gas
$[P + \frac{n^{2} a}{V^{2}}] (V - n b) = n R T$
When volume of molecules can't be neglected,
$P (V - n b) = n R T$
$P V = n R T + n b P$

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Q. In the van der Waals equation

[P + \frac{n^{2} a}{V^{2}}] (V - n b) = n R T

a

reflects the actual volume of the gas molecules.

Q. In general gas equation,

P V = n R T; V

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Q. In real gas equation

(P + \frac{a n^{2}}{V^{2}}) (V - n b) = n R T

n b

is the volume occupied by the gas molecules.

Q. The gas equation for

n

moles of a real gas is

(P + \frac{a}{V^{2}}) (V - b) = n R T

P

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R

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If a real gas is following equation $P (V - n b) = n R T$ , at low pressure then find the intercept and slope of graph between $\frac{d}{p} v / s P$ .

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