Question

You decide to go on a trip to Machu Picchu and want to learn more about how the altitude affects the atmospheric pressures. You find that the total atmospheric pressure at Machu Picchu is 540 mmHg. What are the partial pressures of carbon dioxide, nitrogen, oxygen (assuming dry air)?

Matches: 0.03 mmHg 7 mmHg 21 mmHg 79 mmHg 427 mmHg 18,000 mmHg 0.16 mmHg 16 mmHg 26 mmHg 113 mmHg 11,302 mmHg 42, 682 mmHg

a) carbon dioxide=_____

b) nitrogen=_____

c) oxygen=_____

Answer 1

a) carbon dioxide=____0.16 mmHg_

b) nitrogen=_427 mmHg____

c) oxygen=___110 mmHg__

Explanation: Total atmospheric pressure = 540 mmHg

amount of Nitrogen in air = 79 % of total air

hence partial pressure of Nitrogen = 79 % of total atmospheric pressure = 79/100 x 540 = 427 mmHg

amount of of Oxygen = 21% of air

hence partial pressure of Oxygen= 20 % of total atmospheric pressure = 20/100 x 540 = 110 mmHg

amount of of Co2 = 0.035% of air

hence partial pressure of Oxygen= 0.035 % of total atmospheric pressure = 0.035/100 x 540 = 0.18 mmHg