Joule–Thomson Effect Quiz

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What is the significance of the critical temperature of a gas?

It indicates the pressure required to liquefy the gas.

It determines the volume of one mole of the gas.

It represents the temperature at which a gas cannot be liquefied.

It measures the attractive forces between molecules. (correct)

Which method involves subjecting a gas to intense coldness to liquefy it?

Joule Thomson effect

Faraday's method

Claude's method

Linde's method (correct)

How does compression contribute to liquefaction of gases?

It decreases the critical temperature of the gas.

It decreases the attractive forces between molecules.

It increases the kinetic energy of the molecules.

It brings the molecules close together. (correct)

How does a decrease in temperature affect the liquefaction of gases?

Facilitates liquefaction Signup and view all the answers

In which method is compression used as a means to achieve liquefaction?

Claude's method Signup and view all the answers

Which technique involves both cooling and compression to achieve gas liquefaction?

Joule Thomson effect Signup and view all the answers

What is the outcome of a gas being cooled in terms of kinetic energy and molecular velocity?

Kinetic energy decreases and molecular velocity decreases Signup and view all the answers

Which physical condition influences the transformation of a gaseous substance into liquid state?

Temperature Signup and view all the answers

What happens to the pressure required to liquefy a gas with an increase in temperature?

It increases Signup and view all the answers

What is the critical temperature of a gas?

The temperature at which a gas can no longer exist in liquid form Signup and view all the answers

Which method involves applying pressure to a gas to bring the molecules within the sphere of van der Waals forces for liquefaction?

Linde’s method Signup and view all the answers

In the context of liquefaction, what does the critical pressure represent?

The maximum vapor pressure that the liquid can have Signup and view all the answers

What causes the drop in temperature in the Joule Thomson effect?

Energy expenditure to overcome cohesive forces Signup and view all the answers

How is liquid oxygen obtained based on the Joule Thomson effect?

By expanding air to low pressure regions Signup and view all the answers

How does Linde's method differ from Faraday's method in terms of liquefaction?

Faraday compresses air at 200 atmospheres, while Linde expands air at low pressure Signup and view all the answers

What is the purpose of Claude's apparatus in the liquefaction process?

To cool air by expanding it with a piston Signup and view all the answers

What role does the fine orifice play in the Joule Thomson effect?

Allows gas expansion to low pressure regions Signup and view all the answers

Why does expansion of gas molecules lead to cooling in the Joule Thomson effect?

It separates molecules causing an increase in intermolecular distance Signup and view all the answers

Joule–Thomson Effect Quiz

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