Sunil Kumar FP
Last Activity: 10 Years ago
let the partial pressure of heptane and octane of the solution be ph and poct
now partial pressure of any component in solution is given by=pressure in pure solution*mole fraction----(1)
mole of heptane=25/100=.25 and mole of octane=35/114=.3
now mole fraction of heptane=.25/.55=.45
mole fraction of octane=.3/.55=.54
now partial pressure of heptane=.45*105=47.25KPa
partial pressure of octane=45*.54=24.3Kpa
thus the total pressure is the sum of the individual pressure in the solution=47.2+24.3Kpa=70.2Kpa