engineering chemistry MCQ #3413

The partial pressure of a gas in a mixture is 0.2 atm. If the total pressure is 1 atm, what is its mole fraction?

engineering chemistry MCQ #3413

  1. Question 1

    Q1. The partial pressure of a gas in a mixture is 0.2 atm. If the total pressure is 1 atm, what is its mole fraction?

    • A) 0.2
    • B) 0.5
    • C) 0.8
    • D) 0.1

    Answer: 0.2

    Explanation: The mole fraction is equal to the partial pressure divided by the total pressure: X = P_i / P_total = 0.2 / 1 = 0.2.