A gaseous mixture containing 1.5 mol Ar and 3.5 mol CO₂ has a total pressure of 7.3 atm.What is the partial pressure of CO₂? A) 2.2 atm B) 1.4 atm C) 17 atm D) 5.1 atm E) 7.3 atm

Question

Quizplus · Accepted Answer

The partial pressure of a gas in a mixture is given by the mole fraction of the gas multiplied by the total pressure. The mole fraction of CO₂ is 3.5/(1.5+3.5) = 0.7. Therefore, the partial pressure of CO₂ is 0.7 * 7.3 atm = 5.1 atm.

A Gaseous Mixture Containing 1