A Tank Holds a Mixture of Oxygen and Nitrogen Gases

Multiple Choice

A tank holds a mixture of oxygen and nitrogen gases. If the partial pressure of oxygen is 3.3 atm and the mole fraction of N₂ gas X(N₂) = 0.78, what are the total pressure in the tank and the partial pressure of N₂?

A) 15 atm, 11.7 atm
B) 5.9 atm, 2.6 atm
C) 7.5 atm, 4.2 atm
D) 1 atm, 0.78 atm
E) 4.1 atm, 0.78 atm