Elementary Principles 11 - 2.34 (a) Yes, because when ln[(C...

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2- 11 2.34 (a) Yes, because when ln[( ) / ( )] CC C C AA e A A e 0 is plotted vs. t in rectangular coordinates, the plot is a straight line. -2 -1.5 -1 -0.5 0 0 50 100 150 200 t (min) ln ((C A -C Ae )/(C A0 )) Slope = -0.0093 k = 9.3 10 min -3 ⇒× 1 (b) 3 00 (9.3 10 )(120) -2 -2 ln[( ) /( )] ( ) (0.1823 0.0495) 0.0495 9.300 10 g/L 9.300 10 g 30.5 gal 28.317 L =/ = 1 0 . 7 g L 7.4805 gal −× −− = = + =− += × × ⇒= = kt A Ae A Ae A A Ae Ae A C C k tC C C e C Ce CmV mC V 2.35 (a) ft and h , respectively 3- 2 (b) ln( V ) vs. t 2 in rectangular coordinates, slope=2 and intercept=ln( . ) 353 10 2 × ; or V (logarithmic axis) vs. t 2 in semilog coordinates, slope=2, intercept=353 10 2 . × (c) V (). e x p ( . ) mt
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