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Advanced MCQs on Gaseous State

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Questions and Answers

What is the definition of compressibility factor for a gas?

The ratio of actual volume to compressed volume

The ratio of actual pressure to ideal pressure

The ratio of actual volume to ideal volume (correct)

The ratio of actual pressure to compressed pressure

In terms of kinetic theory, what does the root mean square velocity of gas molecules represent?

Most probable velocity of gas molecules (correct)

Minimum velocity of gas molecules

Average velocity of gas molecules

Maximum velocity of gas molecules

According to Graham's law of diffusion, how are the rates of diffusion of two gases related?

Inversely proportional to the square root of their densities

Inversely proportional to the square root of their molar masses

Directly proportional to the square root of their densities (correct)

Directly proportional to the square root of their molar masses

How does increasing the temperature affect the average kinetic energy of gas molecules?

Increases linearly with temperature Signup and view all the answers

What is the correct statement about the Vander Waals constant 'a' for gases?

It accounts for attractive forces between gas molecules Signup and view all the answers

What is the mathematical expression for Boyle's Law?

$rac{{P_1}}{{P_2}} = rac{{V_2}}{{V_1}}$ Signup and view all the answers

Which gas law describes the relationship between pressure, volume, and temperature?

Charles' Law Signup and view all the answers

Which parameter is directly related to the average kinetic energy of gas molecules?

Temperature Signup and view all the answers

What happens to the average speed of gas molecules when the molar mass of the gas decreases?

Increases Signup and view all the answers

In which state are intermolecular distances relatively large and intermolecular forces are weak?

Gaseous state Signup and view all the answers