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Chemical Engineering :: Chemical Reaction Engineering

  1. Which of the following is an independent variable for a batch tank reactor with uniform concentration and temperature?

  2. A.

     Time

    B.

     Useful volume of the tank

    C.

     Diameter of the reactor

    D.

     None of these


  3. A reaction which is catalysed by a base is catalysed by all substances which have a tendency to

  4. A.

     Lose a proton

    B.

     Gain a proton

    C.

     Gain an electron

    D.

     None of these


  5. In a/an __________ vessel, the fluid enters and leaves following plug flow.

  6. A.

     Open

    B.

     Closed

    C.

     Open-closed

    D.

     Close-opened


  7. In the fluid catalytic cracker (FCC), the cracking reaction is __________ (i) and the regeneration is ____________ (ii)

  8. A.

     (i) exothermic (ii) endothermic

    B.

     (i) exothermic (ii) exothermic

    C.

     (i) endothermic (ii) enodthermic

    D.

     (i) endothermic (ii) exothermic


  9. __________ explains the mechanism of catalysis.

  10. A.

     Activated complex theory

    B.

     Collision theory

    C.

     Thermodynamics

    D.

     None of these


  11. B.E.T. method of finding out surface area of a catalyst, uses the extension of __________ isotherm.

  12. A.

     Langmuir

    B.

     Freundlich

    C.

     Tempkin

    D.

     None of these


  13. Specific rate constant for a second order reaction

  14. A.

     Is independent of temperature

    B.

     Varies with temperature

    C.

     Depends on the nature of the reactants

    D.

     Both B and C


  15. According to Arhenious equation of temperature dependency of rate constant for an elementary reaction

  16. A.

     K ∝ √T

    B.

     K ∝ e-E/RT

    C.

     K ∝ T e-E/RT

    D.

     None of these


  17. Collision theory gives the rate constant for bimolecular reaction as

  18. A.

     K α √T.e-E/RT

    B.

     K α eE/RT

    C.

     K α e-E/RT

    D.

     None of these


  19. The vessel dispersion number (D/μL) for plug flow is

  20. A.

     0

    B.

     500

    C.

     750

    D.

     ∞