The solubility of $CO_{2}$ is 20-25 times higher than that of $O_{2}$. The amount of $CO_{2}$ that can diffuse through the diffusion membrane per unit difference in partial pressure is much higher as compared to that of $O_{2}$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.