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About 21%.
About 21%
About 0.04%
Xenon is a harmless gas but it is also an anaesthetic.
Inhaled air will be of ambient temperature. If the surroundings are warm, then inhaled air is warm. If surroundings are cold then inhaled air is cold.
Oxygen is the gas that demonstrates the largest difference in percent between air that is inhaled, and air that is exhaled. The symbol for oxygen is O.
Inhaled air contains a greater volume of oxygen than carbon dioxide. Exhaled air is the opposite, since after the exchange of gases in the lungs the carbon dioxide in the blood is transferred into the lungs. Exhaled air contains a greater volume of carbon dioxide than oxygen. Also, there is more water vapour in exhaled air than inhaled air.
The air we breathe, indeed does contain Xenon. We recover Xenon by methods of fractional distillation.
Air inhaled through the mouth is not as clean as air inhaled through the nose. Reason for this is that when we inhale air through our nose than it get filtered by hair present in our nose. But air inhaled through our mouth goes directly in without any filtration.
They normally get xenon from fractional distillation of air.
xenon is not toxic, it is in the air we breath in.
Inhaled air is warmed and moistened in the nasopharynx and oropharynx.