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Chemical Engineering :: Stoichiometry

  1. The density of a gas at N.T.P.is 'ρ'. Keeping the pressure constant (i.e. 760 mm Hg), the 3 density of the gas will become ¾ 0.75ρ at a temperature of __________ °K

  2. A.

     273°

    B.

     300°

    C.

     400°

    D.

     300°


  3. An oxidation process is accompanied by decrease in the

  4. A.

     Number of electrons

    B.

     Oxidation number

    C.

     Number of ions

    D.

     All of the above


  5. 1 torr is equal to __________ mm Hg column.

  6. A.

     1

    B.

     0.1

    C.

     10

    D.

     1000


  7. Viscosity of 1 centipoise is equal to 1 centis-toke in case of

  8. A.

     Water

    B.

     Mercury

    C.

     Carbon tetrachloride

    D.

     None of these


  9. Pick out the wrong statement.

  10. A.

     One kg-mole of an ideal gas occupies 22.4 m³ at N.T.P

    B.

     One lb-mole of an ideal gas occupies 359 ft³ at N.T.P

    C.

     One gm-mole of an ideal gas occupies 22.4 litres (i.e., 22400 c.c) at N.T.P

    D.

     Density of dry air at N.T.P. is 1 gm/litre


  11. Cv for monoatomic gases is equal to(where, R = gas constant)

  12. A.

     R

    B.

     1.5 R

    C.

     2R

    D.

     3R


  13. The equilibria relations in a multicom-ponent and multiphase system can not be calculated with the help of the

  14. A.

     Phase rule

    B.

     Experimental data

    C.

     Emperical equations

    D.

     Theoretical equations


  15. Solutions which distil without change in composition are called

  16. A.

     Ideal

    B.

     Saturated

    C.

     Supersaturated

    D.

     Azeotropic


  17. A saturated vapor on being compressed would

  18. A.

     Condense

    B.

     Form wet steam

    C.

     Both A & B

    D.

     Neither A nor B


  19. One of the specific gravity scales is "Brix" (used speicifically for sugar solution). It is defined as

  20. A.

     Brix = (400/G) - 400

    B.

     Brix = 200 (G-1)

    C.

     Brix = 145 - (145/G)

    D.

     None of these