Chemical Engineering :: Chemical Reaction Engineering
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Pick out the wrong statement.
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In a/an __________ reactor, there is exchange of heat with the surroundings with sizeable temperature variation.
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'Unreacted core model' represents the reaction involving
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For a vapour phase catalytic reaction (A + B
P) which follows the Ridel mechanism and the reaction step is rate controlling, the rate of reaction is given by (reaction rate is irreversible, product also absorbs). -
If a solid-gas non-catalytic reaction occurs at very high temperature, the rate controlling step is the __________ diffusion.
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The units of frequency factor in Arhenious equation
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Which of the following is not a chemical step in a fluid solid catalytic reaction ?
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At a given temperature, K1, K2 and K3 are equilibrium constants for the following reactions 1, 2, 3 respectively.
CH4(g) + H2O(g)
CO(g) + 3H2(g),
CO(g) + H2O(g) CO2(g) + H2(g)
CH4(g) + 2H2O(g) CO2(g) + 4H2(g)
Then K1, K2 and K3 are related as: -
In case of __________ reactions, the reaction rate does not decrease appreciably as the reaction proceeds.
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A.
In a batch reactor, which is exclusively used for liquid phase reactions; temperature pressure and composition may vary with time.
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B.
In a semi-batch reactor, one reactant is charged batchwise, while the other reactant is fed continuously.
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C.
In a continuous flow reactor, uniform concentration can not be maintained throughout the vessel even in a well agitated system.
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D.
In a continuous flow reactor, both the reactants and the products flow out continuously.
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having k1 << k2, the reaction system can be approximated as
