Elementary Principles 171 - 6.12 a. T1 = 58.3 C , p1 = 755...

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6- 5 6.12 a. T 1 58 3 .C , p 1 755 747 52 60 ∗= = mm Hg mm Hg mm Hg bg T 2 110 C , p 2 755 577 222 400 = mm Hg mm Hg mm Hg ln p a TK b + a pp TT = ∗∗ = =− ++ ln ln . .2 .2 21 11 1 110 273 1 58.3 273 400 60 46614 bgb g bp a T =∗ = + + = ln ln . .. . 1 1 60 46614 58 3 2732 18156 ln . . p T + 46614 18156 ln . . ∗° = = = 130 6595 130 7314 CC e m m H g 6.595 b. Basis: 100 mol feed gas CB denotes chlorobenzene. Saturation condition at inlet: C mm Hg 760 mm Hg mol CB mol CB yP p y oo =∗° = = 130 731 0 962 . Saturation condition at outlet: C mm Hg 760 mm Hg mol CB mol CB y 58 3 60 00789 ° = = Air balance: 100 mol 1 1 100 1 0 962 1 0 0789 4126 111 −= −⇒ = = yn y n o b g b g b g . Total mole balance: 100 mol CB =+⇒= − = nn n l 12 2 100 9587 % condensation: 95.87 mol CB condensed 0.962 100 mol CB feed × ×= 100% 99 7% . c. Assumptions: (1) Raoult’s law holds at initial and final conditions; (2) CB is the only condensable species (no water condenses);
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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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