Question

As you breathe in dry air, the water vapor content ____. the partial pressure of oxygen and nitrogen gas ______ and the total gas pressure ______

The choices are increase, decrease, is unchanged.
Please someone help me i can't figure this out

Answer 1

Dry air, is anhydrous oxygen and nitrogen. Given that osmosis is the movements of a substance from area of large to low concentration, then water vapour content in our organism is expected to decrease as it is going to be dried by the dry air inhaled.
Given that we inhaled oxygen and nitrogen, the content of such gases will increase.
Ultimately, as the number of moles of gases are balanced the total pressure is unchanged.

Answer 2

thanks

Answer 3

No problem.