question_answer

\[{{N}_{2}}O\] and \[C{{O}_{2}}\] have the same rate of diffusion under same conditions of temperature and pressure. Why?

Answer:

                Both have same molar mass (= 44 g \[mo{{l}^{-1}}\]). According to Graham's law of diffusion, rates of diffusion of different gases are inversely proportional to the square root of their molar masses under same conditions of  temperature and pressure.