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Chemical Reaction Engineering

Chemical Reaction Engineering
Reactions with high activation energy are

Temperature insensitive
Always reversible
Very temperature sensitive
Always irreversible

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Chemical Reaction Engineering
A stirred tank reactor compared to tubular-flow reactor provides

Higher overall selectivity for a first order consecutive reaction
Permits operation at the optimum temperature for a long reaction time
All of these
More uniform operating conditions

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Chemical Reaction Engineering
Vegetable oils are hydrogenated in a __________ reactor.

None of these
Slurry
Plug flow
Homogeneous catalytic

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Chemical Reaction Engineering
If the rate of a chemical reaction becomes slower at a given temperature, then the

Free energy of activation is lower
Entropy changes
Free energy of activation is higher
Initial concentration of the reactants remains constant

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Chemical Reaction Engineering
If CA is the quantity of reactants initially present, the quantity left after 'n' half periods will be equal to

(CA)1/2n
(CA)n
(CA)1/n
(1/2)n.CA

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Chemical Reaction Engineering
The role of a catalyst in a chemical reaction is to change the

Final products
Activation energy
Heat of reaction
Equilibrium constant

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