What is meant by the vapor of a substance like $CO_2$?
(N/A) substance is called a vapor if it exists in the gaseous state below its critical temperature and can be liquefied by applying pressure. $CO_2$ is referred to as $CO_2$ vapor when it is at a temperature below its critical temperature of $31.1 \ ^\circ C$.
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View SolutionGases possess characteristic critical temperature which depends upon the magnitude of intermolecular forces between the particles. Following are the critical temperatures of some gases:
$Gases$ $Critical \ temperature \ in \ Kelvin$ $P$ $33.2$ $Q$ $5.3$ $R$ $154.3$ $S$ $126$
From the above data,what would be the order of liquefaction of these gases? Start writing the order from the gas liquefying first.
| $Gases$ | $Critical \ temperature \ in \ Kelvin$ |
| $P$ | $33.2$ |
| $Q$ | $5.3$ |
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| $S$ | $126$ |
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