The following are the Vander Waal's parameters for four gases W, X, Y and Z
Gas $a (a t m L^{2} m o l^{- 2})$ $b (L m o l^{- 1})$
W 4.0 0.027
X 8.0 0.030
Y 6.0 0.032
Z 12.0 0.027

Based on given values identify, which one of these gases has the highest critical temperature

Question

The following are the Vander Waal's parameters for four gases W, X, Y and Z

Gas	$a (a t m L^{2} m o l^{- 2})$	$b (L m o l^{- 1})$
W	4.0	0.027
X	8.0	0.030
Y	6.0	0.032
Z	12.0	0.027

Based on given values identify, which one of these gases has the highest critical temperature

TestHub · Accepted Answer

Critical temperature is the temperature at and above which gases cannot liquefied, no matter how much pressure is applied. For Z gas of given gases, critical temperature is highest

$T_{c} = \frac{8a}{27Rb} \Rightarrow T_{c} \propto \frac{a}{b} \Rightarrow$ It is highest for $Z$

Chemistry - Real Gas Question with Solution | TestHub

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