-->

Solutions

Question
CBSEENCH12005720

Vapour pressures of pure acetone and chloroform at 328 k are 741.8 nm Hg and 632.8 mm Hg respectively. Assuming that they form ideal solution over the entire range of composition, plot Ptotal , Pchlroform and Pacelone as a function of Xactone. The experimental date observed for different composition of mixture is:

100 x xacetone

0

11.8

23.8

36.0

50.8

58.2

64.5

72.1

Pacetone / mm Hg

 

0

54.9

110.1

202.4

327.7

405.9

454.1

521.1

Pchloroform/ mm Hg

632.8

548.1

469.4

359.7

257.7

193.6

161.2

120.7

Plot this data also on the same graph paper, indicate whether it has positive deviation or negative deviation from the ideal solution.

Solution
The plot is given below:


It has negative deviation from the ideal solution.