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  • Question

  • In case of physical adsorption, the heat of adsorption is of the order of __________ kcal/kg.mole.


  • Options
  • A. 100
  • B. 1000
  • C. 10000
  • D. 100000

  • Correct Answer
  • 1000 

    • Chemical Reaction Engineering problems

    Search Results

    • 1. A reversible liquid phase endothermic reaction is to be carried out in a plug flow reactor. For minimum reactor volume, it should be operated such that the temperature along the length

    • Options
    • A. decreases.
    • B. increases.
    • C. is at the highest allowable temperature throughout.
    • D. first increases and then decreases.
      • Discuss
    • 2. The excess energy of reactants in a chemical reaction required to dissociate into products is termed as the __________ energy.

    • Options
    • A. activation
    • B. potential
    • C. binding
    • D. threshold
      • Discuss
    • 3. __________ is the response curve for a step input signal from a reactor.

    • Options
    • A. S-curve
    • B. C-curve
    • C. I-curve
    • D. none of these
      • Discuss
    • 4. For a solid catalysed chemical reaction, the effectiveness of solid catalyst depends upon the __________ adsorption.

    • Options
    • A. physical
    • B. chemical
    • C. both (a) and (b)
    • D. neither (a) nor (b)
      • Discuss
    • 5. Reaction rate equation for the reaction, . If S at is present in large excess, what is the order of this reaction?

    • Options
    • A. zero
    • B. one
    • C. two
    • D. three
      • Discuss
    • 6. The single parameter model proposed for describing non-ideal flow is the __________ model.

    • Options
    • A. tank in series
    • B. dispersion
    • C. both (a) & (b)
    • D. neither (a) nor (b).
      • Discuss
    • 7. From among the following, choose one which is not an exothermic process.

    • Options
    • A. Methanol synthesis
    • B. Catalytic cracking
    • C. Ammonia synthesis
    • D. Oxidation of sulphur
      • Discuss
    • 8. 'N' plug flow reactors in series with a total volume 'V' gives the same conversion as a single plug flow reactor of volume 'V' for __________ order reactions.

    • Options
    • A. first
    • B. second
    • C. third
    • D. any
      • Discuss
    • 9. In a consecutive reaction system when E1 is much greater than E2, the yield of B increases with the

    • Options
    • A. increase of temperature.
    • B. decrease of temperature.
    • C. increase in initial concentration of A.
    • D. decrease in initial concentration of A.
      • Discuss
    • 10. The rate constant of a chemical reaction decreases by decreasing the

    • Options
    • A. pressure
    • B. concentration of reactants
    • C. temperature
    • D. duration of reaction
      • Discuss

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