The liquefaction behaviour of temporary gases like $C O_{2}$ approaches that of $N_{2}$ , $O_{2}$ (permanent gases) as we go:

below absolute zero

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above absolute zero

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above critical temperature

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below critical temperature

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Solution

The correct option is C above critical temperature
Liquification of gas occurs when the inter-molecular forces of attraction reach a point that they become capable to bind the gas molecules together to convert it into a liquid state.
The critical temperature on the other hand, is the measure to identify the strength of inter-molecular forces of attraction.
Temporary gases have strong inter-molecular forces and attractions. So, they can be easily liquified and hence, there critical temperature would be higher. Thus, above critical temperature, the liquification behavior of temporary gases approaches that of permanent gases.

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Similar questions

Q. The liquefaction behaviour of temporary gases approaches that of permanent gases as we go:

Gases posses charcteristic critical temperature which depends upo the magnitude of intermolecular forces between the particles. Following are the critical temperatures of some gases.

$\begin{matrix} G a s e s & H_{2} & H e & O_{2} & N_{2} C r i t i c a l t e m p e r a t u r e i n K e l v i n & 33.2 & 5.3 & 154.3 & 126 \end{matrix}$

From the above data what would be the order of liquefaction of these gases? Start writing the order from the gas liquefying first

(a) $H_{2}, H e, O_{2}, N_{2}$ (b) $H e, O_{2}, H_{2}, N_{2}$

Q. Gases

H_{2} H e O_{2} N_{2}

Critical temperature(K) 33.2 5.3 154.3 126

From the above data what whould be the order of liquefaction of these gases?
Start writing the order from the gas liquefying first.

Q. Given below are the critical temperatures of a few gases. When the gases are started cooling, which gas will liquefy first and which will liquefy in the end?

Gas	$T_{C} / K$
$N_{2}$	$126.0$
$C O_{2}$	$304.10$
$N H_{3}$	$405.5$
$O_{2}$	$154.3$

Q. The Van der waal's constant 'a' for gases

C H_{4}, N_{2}, N H_{3}

and

O_{2}

are 2.25, 1.39, 4.17 and 1.3

L^{2} a t m m o l^{- 2}

respectively. The gas which shows highest critical temperature is:

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The liquefaction behaviour of temporary gases like CO2 approaches that of N2, O2 (permanent gases) as we go:

The liquefaction behaviour of temporary gases like $C O_{2}$ approaches that of $N_{2}$ , $O_{2}$ (permanent gases) as we go: