In a flask of ‘V’ litres, 0.2 moles of O2, 0.4 moles of N2, 0.1 moles of NH3 and 0.3 moles of He gases are present at 27°C. If total pressure exerted by these non-reacting gases is 1 atm, the partial pressure exerted by N2 gas is

In a flask of ‘V’ litres, 0.2 moles of O2, 0.4 moles o

1.	In a flask of ‘V’ litres, 0.2 moles of O2, 0.4 moles of N2, 0.1 moles of NH3 and 0.3 moles of He gases are present at 27°C. If total pressure exerted by these non-reacting gases is 1 atm, the partial pressure exerted by N2 gas is
A.	0.4 atm
B.	0.3 atm
C.	0.2 atm
D.	0.1 atm
Answer» B. 0.3 atm