Question

State true or false.

Effusion rate of oxygen is smaller than nitrogen.

• A. True
• B. False

Answer 1

The correct option is A True

Effusion rate$\propto \frac{1}{\sqrt{\text{molecular weight}}}$

As oxygen has greater molecular weight $\left(32\right)$ so the rate of effusion for oxygen will be smaller than that of $N_2\left(28\right)$.