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Chemical Engineering :: Chemical Reaction Engineering

Chemical Reaction Engineering - Section 1
Chemical Reaction Engineering - Section 2
Chemical Reaction Engineering - Section 3
Chemical Reaction Engineering - Section 4
Chemical Reaction Engineering - Section 5
Chemical Reaction Engineering - Section 6
Chemical Reaction Engineering - Section 7
Chemical Reaction Engineering - Section 8
Chemical Reaction Engineering - Section 9
Chemical Reaction Engineering - Section 10
Chemical Reaction Engineering - Section-11

  1. When all the limiting reactant is consumed in the reaction, the operational yield __________ the relative yield.

    2. A.
    is greater than
    B.
    is smaller than
    C.
    equals
    D.
    can be either greater or smaller than (depends on the type of reaction)

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  2. The half life period of a first order reaction is

    3. A.
    always the same irrespective of the reaction.
    B.
    independent on initial concentration of the reactants.
    C.
    proportional to the initial concentration of reactants.
    D.
    half the specific rate constant.

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  3. The catalyst in a second order reversible reaction increases the rate of the forward reaction

    4. A.
    and decreases that of backward reaction.
    B.
    and backward reaction equally.
    C.
    only.
    D.
    to a greater extent than that of the backward reaction.

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  4. Catalyst carriers

    5. A.
    have very high selectivity.
    B.
    increase the activity of a catalyst.
    C.
    provide large surface area with a small amount of active material.
    D.
    inhibit catalyst poisoning.

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  5. For the liquid phase zero order irreversible reaction A B, the conversion of A in a CSTR is found to be 0.3 at a space velocity of 0.1min-1 . What will be the conversion for a PFR with a space velocity of 0.2 min-1? Assume that all the other operating conditions are the same for CSTR and PFR.

    6. A.
    0.15
    B.
    0.30
    C.
    0.60
    D.
    0.90

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  6. A high space velocity means that a given

    7. A.
    reaction can be accomplished with small reactor.
    B.
    conversion can be obtained with a high feed rate.
    C.
    both (a) and (b).
    D.
    none of these.

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  7. In flow reactors, the performance equations interrelate the rate of reaction to the

    8. A.
    feed rate.
    B.
    reactor volume,
    C.
    extent of reaction.
    D.
    all (a), (b) and (c).

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