Question

For real gases van der Waals equation is written as
P-
an?
v2
(V-nb) = n RT, where 'a' and 'b' are van
der Waals constants. Two sets of gases are :
(1) O2, CO2, H, and He
(II) CH. O, and H
The gases given in set-I in increasing order of'b' and
gases given in set-Il in decreasing order of 'a', are
arranged below. Select the correct order from the
following
[AIPMT (Mains)-2012]
(1) (1) He <H, <CO, <0, (ICH. > H > 0
(2) (1) 0 < He < B < CO (II) H >0 > CH,
(3) (( H, <He <0, <CO, (II) CH. > 0,>H,
(4) (1) H, <0, < He <CO, (1) , > CH>H,
2​

Answer 1

Answer:3 option

Explanation: