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Chemical Engineering :: Stoichiometry

  1. Internal energy of a substance comprises of the __________ energy.

  2. A.
    vibrational
    B.
    rotational
    C.
    translational
    D.
    all (a), (b) & (c)

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  3. In a binary liquid solution of components A and B, if component A exhibits positive deviation from Raoult's law, then component B

  4. A.
    exhibits positive deviation from Raoult's law.
    B.
    exhibits negative deviation from Raoult's law.
    C.
    obeys Raoult's law.
    D.
    may exhibit either positive or negative deviation from Raoult's law.

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  5. Avogadro number is the number of molecules in one __________ of a gas.

  6. A.
    gram
    B.
    kilogram
    C.
    gm.mole
    D.
    litre

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  7. Number of gram equivalent of solute dissolved in one litre of solution is called its

  8. A.
    normally
    B.
    molarity
    C.
    molality
    D.
    formality

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  9. The number of atoms of oxygen present in 11.2 litres of ozone (O3) at N.T.P. are

  10. A.
    3.01 x 1022
    B.
    6.02 x 1023
    C.
    9.03 x 1024
    D.
    1.20 x 1024

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  11. Simultaneous doubling of the absolute temperature of a gas and reduction of its pressure to half, will result in __________ in the volume of the gas.

  12. A.
    no change
    B.
    doubling
    C.
    l/4th reduction
    D.
    four fold increase

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  13. Heat of reaction is not influenced by

  14. 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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  15. Pick out the wrong conversion formula for the conversion of weight units :

  16. A.
    1 tonne = 1000 kg = 22.046 lbs
    B.
    1 U.S. ton = 907 kg = 0.907 tonne = 0.893 ton
    C.
    1 ton = 2240 lbs = 1016 kg = 1.016 tonnes = 1.12 U.S. tons
    D.
    none of these

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  17. The elevation in boiling point of a solution is proportional to the __________ of the solution.

  18. A.
    molal concentration
    B.
    reciprocal of the molal concentration
    C.
    normality
    D.
    molarity

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  19. Pick out the wrong statement.

  20. A.
    One kg-mole of an ideal gas occupies 22.4 m3 at N.T.P.
    B.
    One lb-mole of an ideal gas occupies 359 ft3 at N.T.P.
    C.
    One gm-mole of an ideal gas occupies 22.4 litres (i.e., 22400 c.c) at N.T.P.
    D.
    Density of dry air at N.T.P. is 1 gm/litre.

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