Elementary Principles 295

# Elementary Principles 295 - 8.36 a. Table B.1 Tb = 68.74 o...

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8- 16 8.36 a. Table B.1 T 68.74 C, H (T ) 28.85 kJ / mol Assume: n - hexane vapor is an ideal gas, i.e. H is not a function of pressure CH H H b o vb 61 4 l, 20 C H 4 v, 200 C 12 4 l, 68.74 C HT 4 v, 68.74 C o Total o o o ⇒= = ⎯→ ⎯⎯ BA ⎯⎯⎯ Δ Δ ΔΔ Δ Δ ± ± ±± ± ± bg Δ Δ Δ Δ Δ ± .. ± . . ± . ± ± .... . . Hd T T T d T H HH H H T Total v b 1 20 68 74 2 58 2 9 3 68 74 200 2 0 2163 1054 013744 4085 10 2392 10 57 66 10 24 66 1054 24 66 2885 64 05 == =+ × × + × = =++ = + + = z z −− kJ / mol kJ / mol kJ / mol b. Δ ± . H =− 64 05 kJ / mol c. ± , ± . ± . UC H P V PV RT U o 200 393 64 05 393 6012 2 atm Assume ideal gas behavior kJ / mol kJ / mol ej ⇒== = 8.37 T b 100 00 .C Δ ± . Ht = 40 656 kJ mol H O l, 50 C H O v, 50 C H H O l, 100 C H O v, 100 C 2 o H5 0C 2 o 2 o H1 0 2 o v o v o e j e j Δ Δ ± ± ⎯⎯⎯⎯ Δ ± . HC d T pl 1 25 100 377 z HO 2 kJ mol Δ ± . d T pv 2 100 25 169 z 2 kJ mol Δ ± . . H v 50 377 40 656 169 42 7 °= + − = B C k J m o l Table B.1 Steam table: () 2547.3 104.8 kJ 18.01 g 1 kg 44.0 kJ mol kg 1 mol 1000 g = The first value uses physical properties of water at 1 atm (Tables B.1, B.2, and B.8), while the heat of
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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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