4 A mixture of N2 02 and Ar have mole fractions of 025 065 a

4. A mixture of N2, 02 and Ar have mole fractions of 0.25, 0.65, and 0.10, respectively. What is the pressure of N if the total pressure of the mixture is 3.9 atm? A) 2.5 atm B 0.39 atm C) 0.67 atm D0.98 atm E) 1.33 atm

Solution

mole fraction of n2= 0.25

mole fraction of o2=0.65

mole fraction of ar=0.1

partial pressure= mole fraction of gas*total pressure

=0.25*3.9=0.98 atm D