Question

Which gas has the largest molecular volume?

• A. $A$
• B. $B$
• C. $C$
• D. None

Answer 1

The correct option is C $C$

As we know,

$V=3b$

where,

$V$ = molecular volume

$b$ = Van der Waals constant

For gas $A$,

$V_A=3\times 0.027=0.069d{m}^3$

For gas $B$,

$V_B=3\times 0.030=0.090d{m}^3$

For gas $C$,

$V_C=3\times 0.032=0.096d{m}^3$

$\therefore V_C>V_B>V_A$

Hence, option $C$ is correct.