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Chemical Engineering :: Stoichiometry

  1. The heat capacity of most substances is greater for the __________ state.

  2. A.
    solid
    B.
    liquid
    C.
    gaseous
    D.
    none of these

  3. The temperature at which real gases obey the ideal gas law over a wide range of pressure is called the __________ temperature.

  4. A.
    reduced
    B.
    Boyle
    C.
    critical
    D.
    inversion

  5. Elements in a periodic table are arranged in order of their

  6. A.
    atomic number.
    B.
    mass number.
    C.
    atomic weight.
    D.
    metallic characteristics.

  7. For most salts, the solubility increases with rise in temperature, but the solubility of __________ is nearly independent of temperature rise.

  8. A.
    sodium chloride
    B.
    sodium carbonate monohydrate
    C.
    anhydrous sodium sulphate
    D.
    hypo

  9. The molecules of a liquid which is in equilibrium with its vapor at its boiling point on an average have equal __________ in the two phases.

  10. A.
    potential energy
    B.
    intermolecular forces
    C.
    kinetic energy
    D.
    total energy

  11. If a solution of eutectic composition is cooled, __________ reaching the eutectic temperature.

  12. A.
    the solvent begins to freeze out even before
    B.
    it will undergo no change until
    C.
    it will not solidify even on
    D.
    none of these

  13. Which of the following is not a unit of length ?

  14. A.
    Parsec
    B.
    Angstrom
    C.
    Barn
    D.
    Fermi

  15. The density of a gas 'X' is twice that of another gas 'Y'. If the molecular weight of gas 'Y' is 'M'; then the molecular weight of the gas 'X' will be

  16. A.
    2M
    B.
    M/2
    C.
    M
    D.
    M/4

  17. The equilibrium data of component A in the two phases B and C are given below.

    The estimate of Y for X = 4 by fitting a quadratic expression of a form Y = mX2 for the above data is

  18. A.
    15.5
    B.
    16
    C.
    16.5
    D.
    17

  19. Saturated solution of benzene in water is in equilibrium with a mixture of air and vapours of benzene and water at room temperature and pressure. Mole fraction of benzene in liquid is xB and the vapour pressures of benzene and water at these conditions are pvB and pvw respectively. The partial pressure of benzene in air-vapour mixture is

  20. A.
    PvB
    B.
    xB.PvB
    C.
    (Patm - Pvw)xB
    D.
    xB.Patm