Question

The rates of diffusion of two gases A and B are in the mass ratio 1:4.Then the ratio of molecular masses:

• A. 1/12
• B. 5/24
• C. 16
• D. 1/16

Answer 1

The correct option is C 16

According to Graham's Law of diffusion :-

$\frac{Rate1}{Rate2}=\sqrt{\frac{Mass2}{Mass1}}$

$(\frac{1}{4}{)}^2=\frac{Mass2}{MassD}$

$\frac{1}{6}=\frac{MassB}{MassA}$

$\frac{MassA}{MassB}=16$

The correct option is 'C'