Elementary Principles 351

# Elementary Principles 351 - 8.96 a. 2.30 lb m 15.0 wt% H 2...

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8-72 8.96 a. 2.30 lb 15.0 wt% H SO @ 77 F H Btu/lb m (lb ) 80.0 wt% H SO @ 60 F H m ( lb ) 60.0 wt% H SO @ T F, H m2 4 o 1m 2m 24 o adiabatic mixing 3m o 3 ⇒= U V | | | W | | | ⎯→ ⎯⎯⎯⎯ ± ± ± 10 120 Total mass balance: 2.30 + H SO mass balance: 2.30 0.150 lb (80%) lb (60%) 2 2 m m mm m m = += U V | W | = = R S | T | 3 3 2 3 0800 0 600 517 747 bgbg .( . ) . . b. Adiabatic mixing = Btu / lb Figure 8.5-1 T =140 F m o −− = = E QH HH Δ 0 7 47 2 30 10 120 0 861 33 . ± .. ± . bg b g c. ± ±± H QmH H 60 wt%, 77 F Btu / lb 60 wt%, 77 F Btu o m o di b g =− = + = 130 7 475 130 328 d. Add the concentrated solution to the dilute solution . The rate of temperature rise is much lower (isotherms are crossed at a lower rate) when moving from left to right on Figure 8.5-1.
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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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