Mixed in 6 liters of oxygen and 2 liters of carbon dioxide. Find the volume fraction of each gas in the resulting mixture.

φ = V2 / V (mixture)
V (mixture) = V (oxygen) + V (carbon dioxide) = 6 L + 2 L = 8 L
φ (oxygen) = 6/8 = 0.75
φ (carbon dioxide) = 2/8 = 0.25
Answer: φ (oxygen) = 0.75
φ (carbon dioxide) = 0.25



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