Question

Diffusion of helium gas is four times faster than
(a) CO₂
(b) SO₂
(c) NO₂
(d) O₂

Answer 1

hello...

Answer .

b) sodium

Answer 2

Answer:

The correct answer is option (b).

Explanation:

Molar mass of the $SO_2=M_{SO_2} = 64 g/mol$

Molar mass of helium gas =$M_{He}= 4 g/mol$

Diffusion of the gs is inversely related to square root of their molar mass.

Rate of diffusion of helium gas = r

Rate of the diffusion of $SO_2$ gas = r'

$\frac{r}{r'}=\sqrt{\frac{M_{SO_2}}{M_{He}}}=\sqrt{\frac{64 g/mol}{4 g/mol}}=4$

r = r' × 4

The correct answer is option (b).