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Real Gases

The gases tha...

Question

The gases that show positive deviation at all pressures at 273 K from ideal gas equation among the following is/are

A

H e

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B

H_{2}

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C

N_{2}

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D

both a and b

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Solution

The correct option is D both a and b
$H e$ and $H_{2}$ are so small that they do not have attractive forces at room temperature and shows positive deviation at all pressures.

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Similar questions

Q. Real gases show deviations from ideal gas law because molecules interact with each other. At high pressures molecules of gases are very close to each other. At very low temperatures intermolecular forces become significant. The deviation from ideal gas behaviour can be measured in terms of compressibility factor

Z

, which is the ratio of product

P V

n R T

Z = P V / n R T

) . Taking the pressure and volume corrections due to intermolecular forces vander waals corrected the ideal gas equation.
In vander waals equation of state for non ideal gases, the term that accounts for intermolecular forces

Q. Consider the following statements.
Statement-1: The gas which follows the ideal gas equation at all ranges of temperature and pressure is called real gas.
Statement-2: All gases follow ideal gas equation at high pressure and low temperature.
Now, choose the correct option.

Q. Gases show deviations from ideal behaviour at high temperatures and high pressures.

State True or False.

Real gases show deviation from ideal behaviour at high temperature and low pressure.

Q. STATEMENT – 1: Compressibility factor for hydrogen varies with pressure having a positive slope at all pressures when at 273 K.
STATEMENT – 2: Even at low pressures, repulsive forces dominate in hydrogen gas at 273 K.

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