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Chemical Engineering :: Stoichiometry

  1. A vessel of volume 1000 m³ contains air which is saturated with water vapour. The total pressure and temperature are 100 kPa and 20°C respectively. Assuming that the vapour pressure of water at 20°C is 2.34 kPa, the amount of water vapour (in kg) in the vessel is approximately

  2. A.

     17

    B.

     20

    C.

     25

    D.

     34

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  3. In which of the following case of mixing of a strong acid with strong base (each of 1N concentration), temperature increase will be the highest?

  4. A.

     30 c.c acid and 30 c.c base

    B.

     20 c.c acid and 25 c.c base

    C.

     15 c.c acid and 35 c.c base

    D.

     35 c.c acid and 15 c.c base

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  5. In case of an unsaturated vapor-gas mixture, the humid volume increases with increase in the

  6. A.

     Total pressure

    B.

     Absolute humidity at a given temperature

    C.

     Both A & B

    D.

     Neither A nor B

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  7. Which of the following is not a unit of pressure?

  8. A.

     Parsec

    B.

     Kilo-pascal

    C.

     Bar

    D.

     Newton/metre²

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  9. NaOH contains __________ percent oxygen.

  10. A.

     1

    B.

     10

    C.

     16

    D.

     40

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  11. Increasing the temperature of an aqueous solution will cause decrease in its

  12. A.

     Molality

    B.

     Mole fraction

    C.

     Weight percent

    D.

     Molarity

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  13. The accumulation in a steady state combustion process, burning 1 kg mole of carbon with 1 kg mole of oxygen thereby producing 1 kg mole of carbon dioxide, is __________ kg mole.

  14. A.

     1

    B.

     0

    C.

     16

    D.

     44

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  15. The value of gas constant 'R' is __________ kcal/kg.mole.°C.

  16. A.

     2.79

    B.

     1.987

    C.

     3.99

    D.

     None of these

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  17. Heat of __________ of a fuel is called its calorific value.

  18. A.

     Formation

    B.

     Combustion

    C.

     Reaction

    D.

     Vaporisation

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  19. The average translational kinetic energy with which a gas molecule is endowed is dependent on its

  20. A.

     Nature

    B.

     Size

    C.

     Absolute temperature

    D.

     All of the above

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