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For real gases van der Waals’ equation i...

For real gases van der Waals’ equation is written as `(p+(an^2)/V^2)(V-nb)=nRT` where, 'a' and 'b' are van der Waals' constants Two sets of gases are
`O_2CO_2.H_2` and He
`CH_4O_2` and `H_2`
The gases given in set I in increasing order of 'b' and gases given in set II in decreasing order of ‘a’, are arranged below. Select the correct order from the following.

A

`(I)HeltH_2ltCO_2ltO_2`
`(II)CH_4gtH_2gtO_2`

B

`(I)O_2ltHeltH_2ltCO_2`
`(II)H_2gtO_2gtCH_4`

C

`(I)H_2ltHeltO_2ltCO_2`
`CH_4gtO_2gtH_2`

D

`(I)H_2ltO_2ltHeltCO_2`
`O_2gtCH_4gtH_2`

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