Elementary Principles 216 - 6.69 (cont'd) d. Txy diagram...

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6- 50 6.69 (cont’d) d. Raoult’s law : Ty bp o =C , = . 71 058 Δ Δ T T T y y y actual bp actual error in error in = ×= = 71 753 753 100% 57% 058 060 060 100% 333% . . . .. . . Benzene and chloroform are not structurally similar compounds (as are, for example, pentane and hexane or benzene and toluene). There is consequently no reason to expect Raoult’s law to be valid for chloroform mole fractions that are not very close to 1. 6.70 Px p T x p T mm b p m P ≈= = + 17 6 0 1 atm mm Hg bp ** di bgdi 7.87863 1473.11/( 230) 7.74416 1437.686/( 198.463) E-Z Solve o 760 0.40 10 0.60 10 79.9 C bp bp TT T −+ + →= We assume (1) the validity of Antoine’s equation and Raoult’s law, (ii) that pressure head and
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This note was uploaded on 02/27/2012 for the course CHEMICAL E 312 taught by Professor Cheung during the Fall '11 term at The University of Akron.

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