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Chemical Engineering :: Chemical Reaction Engineering

  1. The reaction in which the rate equation corresponds to a stoichiometric equation, is called a/an __________ reaction.

  2. A.
    elementary
    B.
    non-elementary
    C.
    parallel
    D.
    autokinetic

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  3. A first order gaseous phase reaction is catalysed by a non-porous solid. The kinetic rate constant and the external mass transfer co-efficients are k and kg respectively. The effective rate constant (keff) is given by

  4. A.
    keff = k + kg
    B.
    keff = (k+ kg)/2
    C.
    keff = (kkg)1/2
    D.

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  5. Arrhenious equation represents graphically the variation between the __________ and temperature.

  6. A.
    rate of reaction
    B.
    frequency factor
    C.
    rate constant
    D.
    activation energy

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  7. __________ catalytic reaction is involved in the thermal cracking of gas oil.

  8. A.
    Homogeneous
    B.
    Homogeneous non
    C.
    Heterogeneous
    D.
    Heterogeneous non

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  9. Variables affecting the rate of homogeneous reactions are

  10. A.
    pressure and temperature only.
    B.
    temperature and composition only.
    C.
    pressure and composition only.
    D.
    pressure, temperature and composition.

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  11. A chemical reaction occurs when the energy of the reacting molecules is __________ the activation energy of the reaction.

  12. A.
    less than
    B.
    equal to
    C.
    more than
    D.
    equal to or more than

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