Question

Ways in which inhaled air is different from exhaled air

Answer 1

Answer:

1. Inhaled air has 21% O2 but exhaled has only 16%.
2. CO2 in inhaled air is 0.04% and 4% in exhaled.
3. While inhaling the pressure inside the chest is lowered and air is sucked into the lungs. On the other hand, pressure inside the chest increases and air is forced out while exhaling.

Answer 2

Answer:

Inhaled air has the same composition as normal air.

Explanation:

Inhaled air has the same composition as normal air, it contains: 78% nitrogen 21% oxygen 1% inert gas such as argon 0.04% carbon dioxide little water vapour Exhaled air contains less oxygen and more carbon dioxide, it is also saturated with water vapour.