Which of the following pairs of gases will diffuse at exactly the same rate under identical conditio — States of Matter and Gaseous State Chemistry Question

💡 Solution & Explanation

Gases diffuse at the same rate if they have identical molar masses. $CO = 12+16=28$ and $N_2 = 14 \times 2=28$. $CO_2 = 12+32=44$ and $N_2O = 28+16=44$. $NO = 14+16=30$ and $C_2H_6 = 24+6=30$. $SO_2 = 64$ and $CH_4 = 16$, which differ.