You have just landed on a new planet and are responsible for analyzing the compo

Question

You have just landed on a new planet and are responsible for analyzing the composition of the atmosphere. After collecting a sample of the atmosphere and analyzing it, you discover that the total atmospheric pressure is 540 mmHg. Using your knowledge of partial pressures, fill out the table below. Assume that the water vapor pressure is the same as on Earth. Match the numbers with their appropriate slots.

108 mmHg 0.15 mmHg 427 mmHg 119 mmHg 0 mmHg 24 mmHg 0.16 mmHg 0.17 mmHg 408 mmHg 446 mmHg 113 mmHg 47 mmHg Percentage of gas Atmospheric pressure: 540 mmHg Gas 25C, dry air 25C, 100% humidity Nitrogen (N2) Oxvg Carbon Dioxide (CO2 Water vapor 79% 21% 0.03% en (02

Explanation / Answer

Given atmospheric pressure= 540mmHg

For dry air

Nitrogen (N2)= 79% of 540mmHg= 426.6mmHg

Oxygen (O2)= 21% of 540mmHg= 113.4mmHg

Carbon dioxide(CO2) = 0.03% of 540mmHg= 0.162mmHg

Water vapour = 0% of 540mmHg= 0mmHg

For 100% humidity air, the saturated vapour pressure on earth is 24.0019mmHg

Nitrogen (N2)= 79% of (540- 24.0019)mmHg= 407.63mmHg

Oxygen (O2)= 21% of (540- 24.0019)mmHg= 108.35mmHg

Carbon dioxide(CO2) = 0.03% of (540- 24.0019)mmHg= 0.154mmHg

Water vapour = 24.0019mmHg

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