At 80 degree C,the vapour pressure of pure liquid A is 520mm of Hg and that of pure liquid 1000mm Hg.If a mixture solution of A and B boils at 80 degree C and 1 atm pressure,Calculate the amount of A in the mixture.

Asked by Pratik | 10th Oct, 2015, 12:41: PM

Expert Answer:

1 space atm space equals space 760 space mm space Hg straight P subscript straight T equals space straight P subscript straight A superscript 0 straight X subscript straight A space plus space straight P subscript straight B superscript 0 straight X subscript straight B 760 equals 520 straight X subscript straight A space plus space straight P subscript straight B superscript 0 space left parenthesis 1 minus space straight X subscript straight A right parenthesis straight X subscript straight A space equals space 0.5 Hence comma space mole space percent space of space straight A space equals space 50 percent sign

Answered by Prachi Sawant | 10th Oct, 2015, 04:43: PM