Chemistry 0620 · IGCSE · Diffusion

Diffusion — practice question

At the same moment, four gas samples are let out into a room. Those 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 has the greatest rate of diffusion?

  • Acarbon dioxide
  • Bhydrogen chloride
  • Chydrogen sulfide
  • Dnitrogen dioxide

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