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Chemical Engineering :: Stoichiometry

  1. If 1 Nm3 of O2 contains 'N' number of molecules, then number of molecules in 2Nm3 of SO2 will be

  2. A.
    N
    B.
    N/2
    C.
    2N
    D.
    4N

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  3. The most convenient way of expressing solution concentration is in terms of

  4. A.
    mole fraction
    B.
    normality
    C.
    molality
    D.
    molarity

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  5. Unit of mass velocity is

  6. A.
    kg/m . hr
    B.
    kg/m2.hr
    C.
    kg/hr
    D.
    kg/m2

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  7. With increase in temperature, the surface tension of water

  8. A.
    increases
    B.
    decreases
    C.
    remains constant
    D.
    increases linearly

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  9. Enthalpy change resulting, when unit mass of solid is wetted with sufficient liquid, so that further addition of liquid produces no additional thermal effect, is called the heat of

  10. A.
    mixing
    B.
    adsorption
    C.
    wetting
    D.
    complete wetting

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  11. Claussius Clapeyron equation applies to the __________ process.

  12. A.
    sublimation
    B.
    melting
    C.
    vaporisation
    D.
    all (a), (b) & (c)

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  13. __________ chart is a graph related to Antonie equation.

  14. A.
    Ostwald
    B.
    Cox
    C.
    Mollier's
    D.
    Enthalpy-concentration

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  15. Degrees of freedom will be equal to the number of components for a system comprising of

  16. A.
    only soluble liquid components.
    B.
    partially miscible two liquid components system having two phases.
    C.
    two liquid components and one solute (soluble in both the liquids).
    D.
    none of these.

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  17. A perfectly insulated container of volume V is divided into two equal halves by a partition. One side is under vacuum, while the other side has one mole of an ideal gas (with constant heat capacity) at 298 K. If the partition is broken, the final temperature of the gas in the container

  18. A.
    will be greater than 298 K.
    B.
    will be 298 K.
    C.
    will be less than 298 K.
    D.
    can not be determined.

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  19. Na2SO4. 10H2O crystals are formed by cooling 100 Kg of 30% by weight aqueous solution of Na2SO4. The final concentration of the solute in the solution is 10%. The weight of crystals is

  20. A.
    20
    B.
    32.2
    C.
    45.35
    D.
    58.65

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