Question

How can diffusion of Oxygen and carbon dioxide take place between

alveoli and blood?

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Answer 1

Oxygen and hydrogen combine together by chemical means to form water.As it is a chemical reaction the properties of hydrogen and oxygen is not same as that of water. So we cannot correlate their properties of them by any means

Answer 2

Explanation:

Here you see red blood cells traveling through the capillaries. The walls of the alveoli share a membrane with the capillaries. That's how close they are. This lets oxygen and carbon dioxide diffuse, or move freely, between the respiratory system and the bloodstream.