CO2 moles = 10.4 / 44 = 0.2364
N2 moles = 7.77 / 28 = 0.2775
total moles = 0.5139
mole fraction of N2Â Â = moles of N2 / total moles
                             Â
= 0.2775 / 0.5139
                              Â
= 0.540
V = 7.69 L
T = 36 + 273 = 309 K
P V = n R T
P x 7.69 = 0.5139Â Â x 0.0821 x 309
P = 1.695 atm
total pressure = 1.695 atm
partial pressure of N2 = mole fraction of N2 x total
pressure
                                  Â
= 0.540 x 1.695
                                   Â
= 0.916 atm
partial pressure of N2 = 0.916 atm
