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Chemical Reaction Engineering

Chemical Reaction Engineering
A chemical reaction occurs when the energy of the reacting molecules is __________ the activation energy of the reaction.

Equal to or more than
Equal to
Less than
More than

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Chemical Reaction Engineering
The conversion XA and residence time data are collected for zero order liquid phase reaction in a stirred tank reactor. Which of the following will be a straight line?

XA Vs ln τ
XA/(1 - XA)Vs τ
XA Vs . τ
XA(1 - XA)Vs τ

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

Autocatalytic
Autothermal
Endothermic
Exothermic

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Chemical Reaction Engineering
A gaseous reactant is introduced in a mixed reactor of 3 litres volume at the rate of 1 litre/second. The space time is __________ seconds.

32
3
1
43833

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Chemical Reaction Engineering
For the liquid phase parallel reactions:R, rR = K?.CA2; E? = 80 KJ/moleS, rS = K?.CA ; E? = 120 KJ/mole The desired product is R. A higher selectivity of R will be achieved, if the reaction is conducted at

High temperature in a PFR
Low temperature in a CSTR
High temperature in a CSTR
Low temperature in a PFR

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Chemical Reaction Engineering
The rate constant of a reaction is a function of the

Extent of reaction
Time of reaction
Initial concentration of the reactants
Temperature of the system

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