Question

2. A gaseous mixture containing equal amount of nitrogen and methane has total
pressure 7.86 mm Hg at 300 K. Calculate the partial pressure (in mm Hg) of methane
in the mixture.
203​

Answer 1

Answer:

Total pressure =P

Partial pressure of methane =Pm

Partial pressure of nitrogen =Pn

Partial pressure of methane = mole fraction of methane × P

mol fraction of methane =16x/(14x+16x)=3014

⇒3014×7.86=30110.04=3.668