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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. The first order gas phase reaction is conducted isothermally in batch mode. The rate of change of conversion with time is given by

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  2. The extent of a reaction is

    3. A.
    different for reactants and products.
    B.
    dimensionless.
    C.
    depends on the stoichiometric co-efficient.
    D.
    all of the above.

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  3. Higher free energy of activation of a chemical reaction (at a given temperature) implies

    4. A.
    slower rate of reaction.
    B.
    higher rate of reaction.
    C.
    higher equilibrium conversion.
    D.
    both (b) and (c).

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  4. Calcination reaction of limestone (CaCO3 CaO + CO2) goes to completion in the rotary kiln, because

    5. A.
    CaO is not dissociated.
    B.
    CO2 escapes continuously.
    C.
    of high calcination temperature.
    D.
    CaO is more stable than CaCO3.

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  5. The reactions with low activation energy are

    6. A.
    always spantaneous
    B.
    slow
    C.
    fast
    D.
    non-spontaneous

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  6. Molecularity of an elementary reaction, P + Q R + S is

    7. A.
    1
    B.
    2
    C.
    3
    D.
    4

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  7. Which of the following is not endothermic in nature ?

    8. A.
    Combustion of sulphur.
    B.
    Gasification of carbon.
    C.
    Thermal cracking of fuel oil.
    D.
    Steam reforming of naphtha.

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  8. The rate of an autocatalytic reaction, , is given by -rA = k . CA . CB. In this case, the

    9. A.
    plot of - rA Vs CA is a straight line with slope k.
    B.
    plot of - rA Vs CA is a hyperbola.
    C.
    rate of disappearance of reactant A is maximum, where CA = CB
    D.
    both 'b' & 'c'

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  9. The space time is equivalent to the holding time in a steady state mixed reactor for

    10. A.
    non-isothermal gas reaction.
    B.
    variable fluid density systems.
    C.
    constant fluid density systems.
    D.
    gas reactions with changing no. of moles.

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  10. For the reaction , the rate of formation of Z is 0.2 gm mole/litre.hr. what is the rate of disappearance of X in gm mole/litre. hr ?

    11. A.
    0.4
    B.
    0.1
    C.
    0.2
    D.
    none ofthese

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