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(B) Critical temperature $(T_C)$ is the maximum temperature at which a gas can be liquefied by the application of pressure alone.Below the critical te

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Below critical temperature,thermal motion of the molecules is slow enough for the intermolecular forces to come into play leading to condensation of the gas.

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(B) Critical temperature $(T_C)$ is the maximum temperature at which a gas can be liquefied by the application of pressure alone.Below the critical temperature,the thermal motion of the molecules is slow enough for the intermolecular forces to come into play,leading to the condensation of the gas.At the critical temperature,the liquid and gaseous phases become indistinguishable.Ideal gases do not have a characteristic critical temperature because they lack intermolecular forces of attraction.Therefore,the correct statement is that below the critical temperature,thermal motion of the molecules is slow enough for the intermolecular forces to come into play leading to condensation of the gas.

Gases	$H_2, He, O_2$
$T_C \ (K)$	$33.2, 5.3, 154.3$

Amongst the following statements,the correct one is

Similar Questions

Explain the relationship between the fluid state,liquid-gas state,critical temperature,and the vapour form of substances.

$A$ liquid can exist only,

Assertion : At critical temperature,liquid passes into gaseous state imperceptibly and continuously.
Reason : The density of liquid and gaseous phase is equal at critical temperature.

Under what conditions can an ideal gas,which follows the kinetic gas equation,be liquefied?

The critical temperatures $(T_C)$ of some gases are given below:

Gases $H_2, He, O_2$

$T_C \ (K)$ $33.2, 5.3, 154.3$

Based on the above data,what is the order of liquefaction of these gases? Start writing the order from the gas that liquefies first.

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