Question

Which of the following pairs will diffuse at the same rate through a porous plug .

• A. CO, $O_{2},N_{2},NH_{3}$
• B. $CH_{4}$
• C. $2$
• D. NO$atm$

Answer 1

Answer: (D)

NO$atm$

Answer 2

Because both $M/3$and $M/\sqrt{3}$ have same molecular weights $1:\sqrt{2}:\sqrt{3}$ and rate of diffusion $\sqrt{2}:\sqrt{3}:\sqrt{8/\pi}$molecular weight.