Question

Which of the following gases will have least volume if 10 g of each gas is taken at same temperature and pressure?

• A. $CO_{2}$
• B. $N_{2}$
• C. $CH_{4}$
• D. HCl

Answer 1

Answer: (A)

$CO_{2}$

Answer 2

(1) : Number of moles

$\propto \frac{1}{Molecularmass}$

Molecular mass of $CO_{2}$=44, $N_{2} = 28,CH_{4} = 16,$ HCl=36.5

$CO_{2}$will have least volume.