Unformatted text preview: ChE 501 Fall 2016 HW Assignment 12 Solution, Due Wednesday, October 26 l. A reactor with a volume of 2.50 m3 is ﬁlled with catalyst particles (SG = 7.85). The fraction of the volume taken up by the air space between the particles, called the void
ﬁaction, is 40.0%. A mixture of 60.0 Wt% chloro-benzene and 40 Wt% ethyl—chloride is added to the reactor until it ﬁlls the void space completely. Estimate the total weight of
the liquid and solid in the vessel. Find the mass of particles.
I 3 o ' u 3 3 u ‘
mp = 0.6 m 3solzals 2.50 m 7.85xl30 kg .= 1.18x104 -kg
m m ‘ Estimate the density of the liquid mixture using both 5.1-1 and 5.5-2. ,0 =o.6(1.107x1;o-" -kg/m3)+0.4(0.903x103 ~kg/m3)= 1.03x104 -kg/m3 _ l
0'36 3 + 0:4 3 =l.02x104-kg/m3
i1.107x10 ~kg/m l ,i0.903x10 -kg/m i - These are pretty close. Use the ﬁrst value and ﬁnd the total weight. _ 3.. ,
m=1.18x104.kg+ 0'4 m llquzds m3 2.50-m3 1.03x103 -kg 3 =1.28x104 -kg m 2. A pressure vessel is ﬁlled with ethane at a temperature of 135 °C and 12.5 atm. If the
volume of the vessel is 15.5 liters, ﬁnd the mass of ethane inside For ethane,
a): 0.098 PC = 48.2-atm TC = 305.4-K
305.4-K 48.2 From Figure 5.4-2, 2 = 0.98 1V 1 V P T3 1 15.5-L -12.5-atm 273-K
n=—T=—.————=-— N =5.9l-mols
zV zVS PS T 0.98 22.4-L/mol l-atm 408-K ...
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