Question

Which molecule would diffuse faster So, or SO,? Explain your reasoning.

Answer 1

The given question is incomplete. The complete question is:

Which molecule would diffuse faster $SO_2$, or $SO_3$,? Explain your reasoning.

Answer: $SO_2$ will diffuse faster as it has low molecuklar weight.

Explanation:

From Graham's law of diffusion rates, the rate of diffusion of a gas is inversely proportional to the square root of its molar mass.

$Rate\propto \sqrt\frac{1}{M}$

or $\frac{Rate_1}{Rate_2}\propto \sqrt\frac{M_2}{M_1}$

Molecular mass of $SO_2$ is 64 g/mol and Molecular mass of $SO_3$ is 80 g/mol

Thus as molecular mass of is less , it will diffuse faster.