The diffusion rate of oxygen and nitrogen is primarily determined by their molecular weights and the temperature and pressure conditions. Since nitrogen (N2) has a slightly higher molecular weight (28.0134 g/mol) compared to oxygen (O2) (32 g/mol), nitrogen typically diffuses slightly slower than oxygen. However, the difference in diffusion rates between oxygen and nitrogen is relatively small and may vary depending on the specific conditions. Overall, the difference in diffusion speeds between the two gases is generally negligible for practical purposes.
