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

Gas $a ( atmL^{2}mol^{- 2} )$ $b ( Lmol^{- 1} )$

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	$a ( atmL^{2}mol^{- 2} )$	$b ( Lmol^{- 1} )$
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

Quantrex Academy · Accepted Answer

Correct answer: D. Z

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} \text{=}\dfrac{\text{8a}}{\text{27Rb}} ⇒ {T}_{c} ∝ \dfrac{a}{b} ⇒

It is highest for

\text{Z}

The following are the Vander Waal's parameters for four gases W, X,...

Options

Correct answer

Step-by-step solution

More from States of Matter