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Chemical Engineering :: Stoichiometry

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Stoichiometry - Section 7
Stoichiometry - Section 8
Stoichiometry - Section-9

  1. 1 BTU/lb.←°F is equivalent to __________ kcal/kg.°C.

    2. A.
    1
    B.
    2.42
    C.
    1.987
    D.
    4.97

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  2. The forces causing the vaporisation of liquid are derived from the Kinetic energy of translation of its molecules. The heat of vaporisation

    3. A.
    increases with pressure rise.
    B.
    decreases with increasing pressure.
    C.
    becomes zero at the critical point.
    D.
    both (b) & (c).

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  3. Which of the following gravity scales is used exclusively for liquids heavier than water ?

    4. A.
    Baumme scale
    B.
    Twaddel scale
    C.
    API scale
    D.
    none of these

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  4. For any system, the __________ heat of solution is dependent on the temperature and the adsorbate concentration.

    5. A.
    integral
    B.
    differential
    C.
    both (a) & (b)
    D.
    neither (a) nor (b)

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  5. Weight of 56 litres of ammonia at N.T.P. is __________ gm.

    6. A.
    2.5
    B.
    42.5
    C.
    56
    D.
    2800

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  6. Concentration of a solution expressed in terms of __________ is independent of temperature.

    7. A.
    molarity
    B.
    normality
    C.
    molality
    D.
    none of these

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

    8. A.
    nature
    B.
    size
    C.
    absolute temperature
    D.
    all (a), (b) & (c)

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  8. The vapor pressure of a substance, at its melting point, is __________ in the solid state as compared to that in the liquid state.

    9. A.
    less
    B.
    more
    C.
    same
    D.
    either (a) or (b); depends on the nature of the substance

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

    10. A.
    formation
    B.
    combustion
    C.
    reaction
    D.
    vaporisation

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  10. Recycling in a chemical process facilitates

    11. A.
    increased yield
    B.
    enrichment of product
    C.
    heat conservation
    D.
    all (a), (b) &(c)

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