1. Tardigrade
  2. Question
  3. Chemistry
  4. Identify the pair of gases that have equal rates of diffusion

Question Error Report

Thank you for reporting, we will resolve it shortly

Back to Question

Q. Identify the pair of gases that have equal rates of diffusion

J & K CETJ & K CET 2008States of Matter

Solution:

Rate of diffusion depends upon the molecular masses of gases.
Therefore, the gases which have equal molecular mass,
have equal rates of diffusion.
$\frac{r_{1}}{r_{2}}=\sqrt{\frac{M_{2}}{M_{1}}}$
Molecular mass of $N _{2} O =28+16=44$
Molecular mass of $CO _{2}=12 +32=44$
$\therefore \frac{r_{N_{2}} O }{r_{ CO _{2}}}=1$
$\therefore r_{N_{2} O}=r_{C O_{2}}$