The partial pressure of a gas can be obtained by doing which of the following?
a. Multiplying the total mixture pressure by the percentage area a particular gas occu-pies
b. Multiplying the atmospheric pressure by the percentage of water vapor present
c. Subtracting the partial pressure of water vapor from the atmospheric pressure
d. Dividing the total pressure of a gas mix-ture by the atmospheric pressure
ANS: A
Dalton's law states that the sum of the partial pressures of a gas mixture equals the total pressure of the system. Therefore, the partial pressure of a single gas may be calculated by multiplying the percentage of the gas in the gas mixture by the total pressure.
You might also like to view...
Which of the lymphocytes produce antibodies?
A. T lymphocytes B. NK lymphocytes C. B lymphocytes D. A lymphocytes
Moderate hypoxemia is indicated with a pulse oximeter reading of ________ percent
A) 86 to 90 B) 95 to 100 C) 81 to 85 D) 90 to 94
Which tube is acceptable for a blood test that requires heparin and must be free of trace elements?
A. Light blue B. Royal blue C. Light green D. Green
You run into a co-worker in the morning. He looks exhausted and his lab coat is wrinkled and dirty. As the day progresses, he becomes increasingly overwhelmed by the amount of patients he has to treat and he starts exhibiting unprofessional behavior. By the end of the day, he looks completely discouraged and tells you he is thinking of quitting. How should you handle this situation?
A. Suggest that he may be suffering from "bad stress" and recommend coping methods. B. Tell your co-worker you agree that he isn't cut out for this kind of work. C. Ignore him; it's not your problem. D. Say that tomorrow will be better.