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Chemical Reaction Engineering

Chemical Reaction Engineering
The eddy diffusivity for a liquid in plug flow must be

Between 0 and 1
∞
1
0

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Chemical Reaction Engineering
For the reversible reaction A ⇋ 2B, if the equilibrium constant K is 0.05 mole/litre; starting from initially 2 moles of A and zero moles of B, how many moles will be formed at equilibrium?

0.637
0.253
0.338
0.152

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Chemical Reaction Engineering
What is the dispersion number for a plug flow reactor?

-1
?
1

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Chemical Reaction Engineering
Which of the following is not a unit of reaction rate?

Moles formed/volume of reactor) (time)
Moles for med/(surface of catalyst) (time)
None of these
Mole formed/volume of catalyst) (time)

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Chemical Reaction Engineering
A pulse tracer is introduced in an ideal CSTR (with a mean residence time ι) at time, t = 0. The time taken for the exit concentration of the tracer to reach half of its initial value will be

0.693τ
0.5τ
τ/0.693
2τ

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Chemical Reaction Engineering
The vessel dispersion number (D/μL) for plug flow is

750
∞
500

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