the consensus is real P is less than ideal P..so based on Diesol Girl's reasoning (good work)...Real V is more than ideal V...
its disturbing that i'm finding discrepancies in the two texts..Also if anyone has TPR, do you know whats going on with Ex 5-7
A soln is formed mixing 0.6 mol Benzene with 0.2 mole toulene. At the temp of the soln, the vapor pressure of pure benzene is 96 torr and vp of pure toulene is 28 torr...
now the mole fraction of toulene is 1/4...
using the equation for vp depression Pb=-XtPb=-(1/4)(96)=24 torr
however when you use dalton's law you get total pressure
3/4(96)+1/4(28)=72+7=79...the original pressure of benzene is 96..the calculated depression is 24..why is the dalton's total pressure 79 as opposed to 72???
thanks