Correct statements regarding critical temperature are(A) It is directly proportional to vanderwal’s constant ‘a’(B) It is inversly proportional to vanderwal’s constant ‘b’(C) Its value is high for gases which are difficult to liquify.

Correct statements regarding critical temperature are
(A) It is directly proportional to vanderwal’s constant ‘a’
(B) It is inversly proportional to vanderwal’s constant ‘b’
(C) Its value is high for gases which are difficult to liquify.

A
A, B and C
B
B and C only
C
C only
D
A and B only

Solution:

$\begin{array}{l} T_{c} = \frac{8 a}{27 Rb} \\ T_{c} \propto \frac{a}{b} \end{array}$
Greater the T_C , more easy to liquefy a gas.

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