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Chemical Reaction Engineering

Chemical Reaction Engineering
The dispersion number of perfect mixed flow is

< 2100
∞
> 150

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Chemical Reaction Engineering
The fractional volume change between no conversion and complete conversion, for the isothermal gas phase reaction, 2A → R, is

1.5
-0.5
0.5
1

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Chemical Reaction Engineering
The time needed to achieve the same fractional conversion for particles of different sizes (d) when chemical reaction controls, is proportional to

D
D2
√d
D1.5

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Chemical Reaction Engineering
The rate of reaction does not decrease appreciably as the reaction proceeds in case of __________ reactions.

Endothermic
Autocatalytic
Autothermal
Exothermic

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Chemical Reaction Engineering
A batch adiabatic reactor at an initial temperature of 373°K is being used for the reaction, A → B. Assume the heat of reaction is - 1kJ/mole at 373°K and heat capacity of both A and B to be constant and equal to 50J/mole.K. The temperature rise after a conversion of 0.5 will be

5°C
10°C
100°C
20°C

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Chemical Reaction Engineering
n' number of plug flow reactors (P.F.R) in series with a total volume 'V' gives the same conversion as one P.F.R. of volume

V.n
V/n
V
1/V

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