Question

The rate of diffusion of so2, co2, pcl3, so3

Answer 1

use Graham law of diffusion r1/r2=root (m2/m1)

Answer 2

Answer:  $CO_2$>$SO_2$> $SO_3$>$PCl_3$

Explanation: Rate of diffusion : It is defined as the volume of gas effused in a given time 't'.  According to Graham's law:

$\text{ Rate of diffusion}\propto \frac{1}{\sqrt{\text{ Mass of gas}}}$

As the rate of diffusion is inversely related to molar mass, the gas with lowest molar mass will diffuse fastest.

Molar weight of $SO_2$= 64g/mol

Molar weight of $CO_2$= 44 g/mol,

Molar weight of $PCl_3$= 137 g/mol

Molar weight of $SO_3$=  80 g/mol

Thus rate of diffusion is : $CO_2$>$SO_2$> $SO_3$>$PCl_3$