Elementary Principles 475 - 11.5 a. Since the temperature...

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11- 4 11.5 a. Since the temperature and pressure of the gas are constant, a volume balance on the gas is equivalent to a mole balance (conversion factors cancel). Accumulation = Input – Output dV dt tV t dV dt V t dt t w V w t w t =− ==× = ⇒= × + × zz z 540 1 0 300 10 0 9 00 300 10 9 00 3 300 10 0 3 0 3 m h h 60 min mm i n m corresponds to 8:00 AM m in minutes 3 3 3 3 ± ,. . ± .. ± . ν νν ej bg b. Let ± wi = tabulated value of ± w at ti 10 1 i = 12 25 ,, , ±± ± . . ,, ww w w i i wi i dt V 0 240 5 24 24 35 24 3 10 3 42 10 3 114 98 4 124 6 2 1134 2488 300 10 9 00 240 2488 2672 z ∑∑ ≅+ + + L N M M O Q P P =+ + + = + = == …… m m 3 3 c. Measure the height of the float roof (proportional to volume). The feed rate decreased, or the withdrawal rate increased between data points, or the storage tank has a leak, or Simpson’s rule introduced an error. d. REAL VW(25), T, V, V0, H
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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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