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Chemical Engineering :: Stoichiometry

  1. The reaction A + B → C has been conducted in a reactor as shown below.

    The number of balances (material) that can be made around the reactor are

  2. A.
    1
    B.
    2
    C.
    3
    D.
    4

  3. The number of water molecules present in a drop of water weighing 0.018 gm is 6.023 x __________

  4. A.
    1026
    B.
    1023
    C.
    1020
    D.
    1019

  5. The density of a liquid is 1500 kg/m3. Its value in gin/litre will be equal to

  6. A.
    1.5
    B.
    15
    C.
    150
    D.
    1500

  7. The heat of vaporisation __________ with increase in pressure.

  8. A.
    increases
    B.
    decreases
    C.
    becomes zero at critical pressure
    D.
    both (b) and (c)

  9. Which of the following expressions defines the Baume gravity scale for liquids lighter than water ?

  10. A.
    °Be = (140/G) - 130
    B.
    °Be = 200(G-1)
    C.
    °Be = 145 - (145/G)
    D.
    °Be = (400/G) - 400

  11. 2 litres of nitrogen at N.T.P. weighs __________ gms.

  12. A.
    14
    B.
    2.5
    C.
    28
    D.
    1.25

  13. Which of the following is followed by an ideal solution ?

  14. A.
    Boyle's law
    B.
    Amgat's law
    C.
    Raoult's law
    D.
    Trouton's rule

  15. Cp/Cv for monoatomic gases is

  16. A.
    1.44
    B.
    1.66
    C.
    1.99
    D.
    1

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

  18. A.
    Brix = (400/G) - 400
    B.
    Brix = 200 (G-1)
    C.
    Brix = 145 - (145/G)
    D.
    none of these

  19. Pick out the wrong statement.

  20. A.
    Ten times dilution of a normal solution (N) reduces its normality to N/10.
    B.
    When equal weights of oxygen and methane are mixed in an empty reactor at room temperature, then the fraction of total pressure exerted by the oxygen is 1/2.
    C.
    Volume occupied by 9.034 x 1023 atoms of oxygen in ozone (O3) at NTP will be 11200 c.c
    D.
    One kg mole of an ideal gas at N.T.P occupies 22400 Nm3.