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Chemical Engineering - Chemical Reaction Engineering

Exercise : Chemical Reaction Engineering - Section 10
11.
In the hydrodealkylation of toluene to benzene, the following reactions occur:
C7H8 + H2 C6H6 + CH4
2C6H6 C12H10 + H2
Toluene and hydrogen are fed to a reactor in a molar ratio 1:5.80% of the toluene gets converted and the selectivity of benzene(defined as moles of benzene formed/moles of toluene converted) is 90%. The fractional conversion of hydrogen is
0.16
0.144
0.152
0.136
Answer: Option
Explanation:
No answer description is available. Let's discuss.
12.
Catalyst is a substance, which __________ chemical reaction.
increases the speed of a
decreases the speed of a
can either increase or decrease the speed of a
alters the value of equilibrium constant in a reversible
Answer: Option
Explanation:
No answer description is available. Let's discuss.
13.
The residence time distribution of an ideal CSTR is
τ exp (-t/τ)
exp(-t/τ)
Answer: Option
Explanation:
No answer description is available. Let's discuss.
14.
A rise in temperature
normally tends to increase the reaction rate.
does not affect a catalysed reaction.
does not affect photo-chemical reaction rates.
all (a), (b) and (c).
Answer: Option
Explanation:
No answer description is available. Let's discuss.
15.
The enzyme which can catalyse the conversion of glucose to ethyl alcohol is
invertase
maltase
diastase
zymase
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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