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Chemical Engineering :: Stoichiometry

  1. Assume that benzene is insoluble in water. The normal boiling points of benzene and water are 80.1 and 100°C respectively. At a pressure of 1 atm, the boiling point of a mixture of benzene and water is

  2. A.

     80.1°C

    B.

     Less than 80.1°C

    C.

     100°C

    D.

     Greater than 80.1°C but less than 100°C


  3. Applicability of Claussius-Clapeyron equation is subject to the condition that the

  4. A.

     Vapor follows ideal gas law

    B.

     Volume in the liquid state is negligible

    C.

     Both A & B

    D.

     Neither A nor B


  5. A metal oxide is reduced by heating it in a stream of hydrogen. After complete reduction, it is found that 3.15 gm of the oxide has yielded 1.05 gm of the metal. It may be inferred that the

  6. A.

     Atomic weight of the metal is 4

    B.

     Equivalent weight of the metal is 4

    C.

     Atomic weight of the metal is 2

    D.

     Equivalent weight of the metal is 8


  7. The heats of vaporisation of CS₂, C₂H₅OH &H₂O are 26.8, 38.6 & 40.6 KJ/kg mole respectively. The order of decreasing inter-molecular forces in these liquids is

  8. A.

     H₂O > C₂H₅OH > CS₂

    B.

     CS₂ > C₂H₅OH > H₂O

    C.

     H₂O > CS₂ > C₂H₅OH

    D.

     CS₂ > H₂O > C₂H₅OH


  9. The heat of adsorption of a gas caused by Van der Walls forces of attraction and capillarity is equal to the heat of

  10. A.

     Normal condensation

    B.

     Wetting

    C.

     Sum of A and B

    D.

     Difference of A and B


  11. __________ equation relates latent heat and boiling point.

  12. A.

     Antonie

    B.

     Kistyakowsky

    C.

     Kopp's

    D.

     Trouton's


  13. Average molecular weight of air is about

  14. A.

     21

    B.

     29

    C.

     23

    D.

     79


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

  16. A.

     N

    B.

     N/2

    C.

     2N

    D.

     4N


  17. 1 Kcal/kg. °C is equivalent to __________ BTU/lb. °F.

  18. A.

     1

    B.

     2.42

    C.

     4.97

    D.

     None of these


  19. 1 BTU/lb.←°F is equivalent to __________ kcal/kg.°C.

  20. A.

     1

    B.

     2.42

    C.

     1.987

    D.

     4.97