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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

  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.

  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

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

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

  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.

  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