Elementary Principles 145 - 5.51 (cont'd) b. P(k a P) 10 00...

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Unformatted text preview: 5.51 (cont'd) b. P(k a P) 10 00 50 00 100 00 50 00 50 00 50 00 50 00 50 00 50 00 T(K H (% ) xs ) 50 0 5 50 0 5 50 0 5 40 0 5 50 0 5 60 0 5 50 0 0 50 0 5 50 0 1 0 K (T 8 p )E 9 E0 .1 + 1 9 E0 .1 + 1 9 E0 .1 + 1 3 E0 .1 + 4 9 E0 .1 + 1 1 E0 .6 + 0 9 E0 .1 + 1 9 E0 .1 + 1 9 E0 .1 + 1 KP p ^2 01 .9 2 .7 28 9 .1 11 7 4 .7 89 7 2 .7 28 01 .4 2 .7 28 2 .7 28 2 .7 28 n (k o n (k o n (k o 3 m l 4 ml 5 m l H /h 2) H /h 2) C /h O) 20 1 7 .4 4 5 18 0 5 .9 20 1 9 .0 1 0 12 0 9 .0 20 1 1 .2 38 3 .5 66 20 1 17 .0 1 .1 25 20 1 2 .3 42 5 .6 84 20 1 8 .4 5 2 10 4 8 .8 20 0 2 .6 65 5 .3 30 20 1 2 .3 42 5 .6 84 20 2 2 .2 23 6 .4 45 n (k o 2 ml H /h 2) 5 .1 10 1 .0 80 13 4 7 .4 17 5 9 .8 11 6 5 .3 2 .1 96 16 0 4 .7 11 6 5 .3 15 5 5 .5 Vc re (S M ) CH 52 27 63 39 11 16 26 9 15 88 56 94 19 71 15 88 14 92 ` n (k o 6 ml nt to M ) (k o ) K c 8 /h ml/h pE 2 .5 5 5 28 0 9 E 1 5 .9 .1 -0 9 0 22 0 2 E 1 .0 9 .0 .3 -0 8 .7 6 2 16 6 9 E0 3 .5 .1 + 1 9 .9 8 3 12 5 7 E0 1 .1 .8 + 3 7 .6 5 8 18 4 2 E0 5 .6 .3 + 1 1 .5 4 8 20 4 4 E 1 8 .8 .1 -0 7 .3 3 5 13 0 2 E0 5 .3 .3 + 1 7 .6 5 8 18 4 2 E0 5 .6 .3 + 1 7 .7 7 7 14 5 2 E0 6 .4 .3 + 1 K P - n (k o p ^2 1 ml C /h O) K c ^2 pP 1E5 .3 -0 2 .5 55 2 E0 .3 + 1 90 .0 4E3 .9 -0 8 .7 62 3E8 .2 -0 9 .9 83 3E3 .4 -0 7 .6 58 -2 E 4 .9 -0 1 .5 48 9E3 .8 -0 7 .3 35 3E3 .4 -0 7 .6 58 -3 E 3 .1 -0 7 .7 77 c. Increase yield by raising pressure, lowering temperature, increasing Hxs. Increasing the pressure raises costs because more compression is needed. d. If the temperature is too low, a low reaction rate may keep the reaction from reaching equilibrium in a reasonable time period. e. Assumed that reaction reached equilibrium, ideal gas behavior, complete condensation of methanol, not steady-state measurement errors. 5.52 1.0 mol CO 2 1.0 mol O 2 1.0 mol N 2 T = 3000 K, P = 5.0 atm 1 CO 2 CO + 2 O 2 K1 = dp d CO p O 2 1/ 2 p CO 2 1 1 O 2 + 2 N 2 NO 2 p NO K2 = = 0.1222 1/ 2 p N 2 p O2 i = 0.3272 atm 1/2 i 1 A B+ C 2 1 1 C+ D= E 2 2 A - CO 2 , B - CO , C - O 2 , D - N 2 , E - NO 1 - extent of rxn 1 n A0 = n C0 = n D0 = 1 , n B0 = n E0 = 0 2 - extent of rxn 2 5-33 ...
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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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