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Chemical Engineering :: Stoichiometry

  1. Addition of a non-volatile solute to a solvent produces a __________ in its solvent.

  2. A.
    freezing point elevation
    B.
    boiling point depression
    C.
    vapor pressure lowering
    D.
    all (a), (b) & (c)

  3. The pH value of a solution is 5.9. If the hydrogen ion concentration is decreased hundred times, the solution will be

  4. A.
    basic
    B.
    more acidic
    C.
    neutral
    D.
    of the same acidity

  5. Hess's law of constant heat summation is based on conservation of mass. It deals with

  6. A.
    equilibrium constant.
    B.
    reaction rate.
    C.
    changes in heat of reaction.
    D.
    none of these.

  7. Percentage saturation of a vapor bearing gas is always __________ the relative saturation.

  8. A.
    higher than
    B.
    smaller than
    C.
    equal to
    D.
    either (a) or (b); depends on the system

  9. Cp is expressed in S.I. unit as

  10. A.
    J/kg.°K
    B.
    0°K
    C.
    W/m2. °C
    D.
    W/m. °K

  11. Total energy at a point comprises of __________ energy.

  12. A.
    potential & kinetic
    B.
    pressure
    C.
    internal
    D.
    all (a), (b) & (c).

  13. Pick out the wrong unit conversion of mass transfer co-efficient.

  14. A.
    1 lb/hr.ft3.atm. = 4.8182 kg/hr.m2.bar
    B.
    1 kg/hr.m2.atm= 0.98687 kg/hr. m .bar
    C.
    1 lb/hr . ft2 = 4.8823 kg/hr . m2
    D.
    1 kg/hr . m2 = 4.8823 lb/hr . ft2

  15. "The heat capacity of a solid compound is approximately equal to the sum of the heat capacities of the constituent elements." This is the statement of

  16. A.
    Law of Petit and Dulong
    B.
    Kopp's rule
    C.
    Nearnst heat theorem
    D.
    Trouton's rule

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

  18. A.
    facilitates better control of the process.
    B.
    improves the conversion.
    C.
    increases the yield of products.
    D.
    none of these.

  19. 1 ata is equivalent to

  20. A.
    1 atm.
    B.
    10 torr
    C.
    0.98 Pascal
    D.
    1 kgf/cm2