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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

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  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

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  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

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  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)

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  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

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

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

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  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

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  15. Cp/Cv for monoatomic gases is

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

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  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

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  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.

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