Question
Ive already checked it DrBob222 that's the problem the teacher gave. Here's the complete problem : Exhaled breathe is a mixture of Nitrogen, oxygen, carbon dioxide and water vapor. What is the partial pressure of CO2(torr) in exhaled breathe at 37.0 degree C if the partial pressure of Oxygen is 116 torrr and that of nitrogen is 659 torr. Assume the atmospheric pressure is 1.00 atm.
Answers
I may be missing something but
Ptotal = pCO2 + pN2 + pO2 + pH2O and I don't see anything in the problem to suggest that pO2 and pN2 should be changed to other conditions (temperature etc). BUT, and this is my problem, 659 + 116 = 775 torr which is more than the total of 760. That will make pCO2 negative and that can't be true. Perhaps another tutor can spot the problem.
Ptotal = pCO2 + pN2 + pO2 + pH2O and I don't see anything in the problem to suggest that pO2 and pN2 should be changed to other conditions (temperature etc). BUT, and this is my problem, 659 + 116 = 775 torr which is more than the total of 760. That will make pCO2 negative and that can't be true. Perhaps another tutor can spot the problem.
thanks a lot
bobpursley
DrBob is correct, something is wrong with the data. I suspect it is the value of pN2 should have been typed 569, which is quite close to what is found in Earth's atmosphere.
bobpursley
http://diatronic.co.uk/nds/webpub/partial_pressures.htm
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