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Real Gases

If temperatur...

Question

If temperature and volume are same, the pressure of a gas obeying Vander Waals equation is:

A

Smaller than that of an ideal gas

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B

Large than that of an ideal gas

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C

Same as that of an ideal gas

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D

None of these

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Solution

The correct option is B Smaller than that of an ideal gas
$As P_{i d e a l} in vanderwaal = P_{r e a l} + \frac{a n^{2}}{V^{2}} \Rightarrow P_{r e a l} < P_{i d e a l} \Rightarrow Pressure of gas obeying Vanderwaal's Equation is smaller than ideal gas.$

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