In a flask of volume '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 27c. if the total pressure exerted b

in a flask of volume '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 27C. if the total pressure exerted by these non-reacting gases is 1atm, the partial pressure exerted by N2 gas is