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Home Chemical Engineering Stoichiometry See What Others Are Saying!
  • Question
  • The heat of adsorption of a gas caused by Van der Walls forces of attraction and capillarity is equal to the heat of


  • Options
  • A. normal condensation.
  • B. wetting.
  • C. sum of (a) and (b).
  • D. difference of (a) and (b).

  • Correct Answer
  • sum of (a) and (b). 


  • More questions

    • 1. Maximum consumption of polymers is in

    • Options
    • A. electrical insulation
    • B. toys making
    • C. coating and films
    • D. packaging
    • Discuss
    • 2. To resist spalling tendency, a refractory should have

    • Options
    • A. greater diffusivity.
    • B. low specific heat.
    • C. low thermal co-efficient of expansion.
    • D. all (a), (b) and (c).
    • Discuss
    • 3. Thermosetting materials

    • Options
    • A. are cross-linked molecules.
    • B. soften on application of heat.
    • C. are solvent soluble.
    • D. none of these.
    • Discuss
    • 4. Laboratory gas is obtained by the cracking of

    • Options
    • A. gasoline
    • B. diesel
    • C. fuel oil
    • D. kerosene
    • Discuss
    • 5. Percentage of drum submerged in the slurry in case of rotary drum filter is

    • Options
    • A. 3
    • B. 30
    • C. 85
    • D. 25
    • Discuss
    • 6. Which of the following variables does not affect the furnace capacity?

    • Options
    • A. Size of the furnace.
    • B. Gas velocity in furnace.
    • C. Ratio of wall surface to surface of stock.
    • D. None of these.
    • Discuss
    • 7. Main constituent of natural gas is

    • Options
    • A. CH4
    • B. C2H2
    • C. C2H4
    • D. C2H6
    • Discuss
    • 8. Fusion point of a basic refractory material is

    • Options
    • A. reduced by the addition of acid oxides.
    • B. increased by the addition of acid oxides.
    • C. not affected by the addition of acid oxides.
    • D. always less than 1000°C.
    • Discuss
    • 9. 80% less than 200 mesh size particles are called

    • Options
    • A. smoke
    • B. powder
    • C. grit
    • D. aggregates
    • Discuss
    • 10. The minimum tray spacing in distillation column of diameter less than 3 ft is normally __________ inches.

    • Options
    • A. 6
    • B. 18
    • C. 24
    • D. 34
    • Discuss


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