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Chemical Reaction Engineering

Chemical Reaction Engineering
The response curve for a step input signal from a reactor is called C-curve. The variance of C-curve in a 'tanks in series model' comprising of 'm' tanks is equal to

m²
√m
m
1/m

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Chemical Reaction Engineering
Rate determining step in a reaction consisting of a number of steps in series is the __________ step.

Slowest
Intermediate
Fastest
Data insufficient; can't be predicted

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Chemical Reaction Engineering
In the fluid catalytic cracker (FCC), the cracking reaction is __________ (i) and the regeneration is ____________ (ii)

(i) exothermic (ii) endothermic
(i) exothermic (ii) exothermic
(i) endothermic (ii) enodthermic
(i) endothermic (ii) exothermic

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Chemical Reaction Engineering
Given, 3H₂ + CO = CH₄ + H₂O, KP = 101.84 and, 4H₂ + CO₂ = CH₄ + 2H₂O, KP = 101.17the KP for the reaction CO + H₂O = CO₂ + H₂ is

L00.67
10-0.67
103.01
10-3.01

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Chemical Reaction Engineering
Half life period of a chemical reaction is

None of these
Half of the residence time of a reaction
Half of the space time of a reaction
The time required to reduce the concentration of the reacting substance to half its initial value

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Chemical Reaction Engineering
The conversion in a mixed reactor/accomplishing a reaction A 3R is 50% when gaseous reactant 'A' is introduced at the rate of 1 litre/second and the leaving flow rate is 2 litres/second. The holding time for this operation is __________ second.

2
3
0.5
1

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