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In the process of underwater welding, a gas bubble is intentionally formed around the weld to protect it from water until it has cooled. To do so, a mixture of gas is used containing mole fractions of χH2=0.70 (70% hydrogen), χCO2=0.25 (25% carbon dioxide), and χCO=0.05 (5% carbon monoxide). If the total pressure on this gas bubble is 2.6 atm, what are the partial pressures of the three component gases (in atm)?

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Answer:

See explanation

Explanation:

Total number of moles of gases in the mixture; 0.70 + 0.25 + 0.05 = 1 mole

Partial pressure= mole fraction of gas × total pressure

Mole fraction of hydrogen = 0.7/1 × 2.6 = 1.82 atm

Mole fraction of CO2 = 0.25/1 × 2.6 = 0.65 atm

Mole fraction of CO= 0.05/1 × 2.6 = 0.13 atm

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