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Chemical Engineering - Chemical Reaction Engineering

Exercise : Chemical Reaction Engineering - Section 3
16.
The rate at which a chemical substance reacts is proportional to its
active mass
equivalent weight
molecular weight
none of these
Answer: Option
Explanation:
No answer description is available. Let's discuss.
17.
The exit age distribution of a fluid leaving a vessel (denoted by E) is used to study the extent of non-ideal flow in the vessel. The value of is
0
1
∞
2π
Answer: Option
Explanation:
No answer description is available. Let's discuss.
18.
A plug-flow reactor is characterised by
high capacity.
presence of axial mixing.
presence of lateral mixing.
constant composition and temperature of reaction mixture.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
19.
Three plug flow reactors (PFR's) of 4, 5 & 6 m3 volumes are arranged in two branches as shown below in the figure.

If the total feed rate is 300 tons/hr, then for the same conversion in each branch, the feed rate through branch II should be __________ tons/hr.
100
150
200
225
Answer: Option
Explanation:
No answer description is available. Let's discuss.
20.
For a tubular reactor with space time 'τ' and residence time 'θ', the following statement holds good.
τ and θ are always equal.
τ = θ , when the fluid density changes in the reactor.
τ = θ , for an isothermic tubular reactor in which the density of the process fluid is constant.
τ = θ , for a non-isothermal reactor.
Answer: Option
Explanation:
No answer description is available. Let's discuss.
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