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States of Matter — Chemistry STD 11 Science — Question

Gujarat BoardEnglish MediumSTD 11 ScienceChemistryStates of Matter2 Marks
Question
Define critical temperature of the gas. Give its expression.
OR
Define critical temperature.
✓

Answer

Critical temperature is a temperature above which a gas cannot be liquefied.
$\text{T}_\text{c}=\frac{8\text{a}}{27\text{bR}}$
where 'a' and ' b' are van der Waals' constants and R is gas constant.

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