Four samples of gases are let out into a room at the same time. The gases are carbon dioxide, $\text{CO}_2$, hydrogen chloride, $\text{HCl}$, hydrogen sulfide, $\text{H}_2\text{S}$, and nitrogen dioxide, $\text{NO}_2$. Which gas diffuses the most rapidly?
- Acarbon dioxide
- Bhydrogen chloride
- Chydrogen sulfide
- Dnitrogen dioxide