Question

What is the fate of Nitrogen when it is inhaled by us with oxygen

Answer 1

Air, which is a mixture containing two main gases — oxygen and nitrogen, is inhaled as well as exhaled. However, the quality of inhaled air is different from that of the exhaled air. Inhaled air is rich in oxygen and poor in carbon dioxide content whereas exhaled air is opposite, that is, rich in carbon dioxide and poor in oxygen. However, the percentage of nitrogen inhaled is more or less same as that which is exhaled. Thus, nitrogen, in its gaseous form, is not utilised by our body at all. We breath it in and simply breathe it out.