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Chemical Engineering :: Stoichiometry

  1. Kinetic theory of gases stipulates that, the

  2. A.

     Energy is lost during molecular collisions

    B.

     Molecules possess appreciable volume

    C.

     Absolute temperature is a measure of the kinetic energy of molecules

    D.

     None of these

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  3. At what temperature, given mass of a gas that occupies a volume of 2 litres at N.T.P. will occupy a volume of 4 litres, if the pressure of the gas is kept constant?

  4. A.

     273°C

    B.

     273°K

    C.

     100°C

    D.

     200°C

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  5. 40 gms each of the methane and oxygen are mixed in an empty container maintained at 40°C. The fraction of the total pressure exerted by oxygen is

  6. A.

     1/2

    B.

     1/3

    C.

     1/4

    D.

     2/3

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  7. The vapor pressure of water at 100°C is

  8. A.

     100N/m²

    B.

     76 cms of Hg

    C.

     13.6 cms of Hg

    D.

     760 mm wc

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  9. A bypass stream in a chemical process is useful, because it

  10. A.

     Facilitates better control of the process

    B.

     Improves the conversion

    C.

     Increases the yield of products

    D.

     None of these

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  11. Which of the following ratios defines the recycle ratio in a chemical process?

  12. A.

     Gross feed stream/recycle feed stream

    B.

     Recycle stream/fresh feed stream

    C.

     Recycle stream/gross feed stream

    D.

     None of these

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  13. Heat of reaction is a function of the

  14. A.

     Pressure

    B.

     Temperature

    C.

     Both(a)&(b)

    D.

     Neither (a) nor (b)

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  15. Heat of reaction is not influenced by

  16. A.

     The route/method through which final products are obtained

    B.

     The physical state (e.g., solid, liquid or gaseous) of reactants and products

    C.

     Whether the reaction is carried out at constant temperature or constant pressure

    D.

     None of these

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  17. Unrestrained expansion of an ideal gas does not result in its cooling due to the reason that the gas molecules

  18. A.

     Do not lose energy on collision

    B.

     Are above the inversion temperature

    C.

     Do not exert attractive force on each other

    D.

     Do work equal to loss in kinetic energy

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  19. Which of the following gases will have the- highest kinetic energy per mole at the same pressure & temperature?

  20. A.

     Chlorine

    B.

     Nitrogen

    C.

     Ethane

    D.

     All of the above

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