Chapter 1 : Overview of Chemical Reaction Engineering

Example 1.1 page no : 6

In [2]:
# Variables
#l=75 cm,d=60 cm,H20 Produced=108kg/s
l=0.75                     # cylindrical long
d=0.6;                     # cylindrical diameter
V=(3.14*d*d*l)/4;
M=18.;                     # molecular weight

# Calculations
H20_produced=108./M;
H2_used=H20_produced;
O2_used=0.5*H20_produced;
#Rate of reaction of H2(mol/m**3.s)
r_H2=(H2_used/V)*1000;
#Rate of reaction of O2(mol/m**3.s)
r_O2=(O2_used/V)*1000;

# Results
print "rate of reaction of H2mol/m**3.s is %.3e mol used/(m**3 of rocket).s"%(r_H2)
print "rate of reaction of O2mol/m**3.s is %.3e mol/m**3.s"%(r_O2)

rate of reaction of H2mol/m**3.s is 2.831e+04 mol used/(m**3 of rocket).s
rate of reaction of O2mol/m**3.s is 1.415e+04 mol/m**3.s

Example 1.2 page no : 7

In [3]:
# Assuming density of a person = 1000kg/m3

# Variables
d = 1000.;
mass = 75.;               # human being

# Calculations
V = mass/d;
#moles of O2 consumed per day
O2_used = (6000./2816)*6;
# Rate of reaction (mol/m3.s)
r_O2 = (O2_used/V)/(24.*3600);

# Results
print "rate of reaction of O2mol/m**3.s is %.3f mol O2 used/m***3.s"%(r_O2)

rate of reaction of O2mol/m**3.s is 0.002 mol O2 used/m***3.s
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