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Chemical Engineering :: Chemical Reaction Engineering

  1. The exit age distribution of fluid leaving a vessel is used to know the

  2. A.
    activation energies of a reaction.
    B.
    reaction mechanism.
    C.
    extent of non-ideal flow in the vessel.
    D.
    none of these.

  3. From Arhenius law, a plot of loge K versus 1/T gives a straight line with a slope of (-E/R). The unit of E/R is

  4. A.
    k cal
    B.
    k cal/°K
    C.
    °K
    D.
    k cal. °K

  5. In the converter of the contact process for the manufacture of H2SO4 the equilibrium conversion of SO2 __________ (A) __________ with increase in temperature and __________ (B) __________ with increase in the mole ratio of SO2 to air.

  6. A.
    (A) increases (B) decreases
    B.
    (A) decreases (B) increases
    C.
    (A) increases (B) increases
    D.
    (A) decreases (B) decreases

  7. For the irreversible elementary first order reaction in parallel viz. , a plot of Cy Vs. Cz will give a straight line having a slope of

  8. A.
    K2/K1
    B.
    K1/K2
    C.
    K1 . K2
    D.
    K1 + K2

  9. The time needed to achieve the same fractional conversion for particles of different sizes (d) when chemical reaction controls, is proportional to

  10. A.
    d
    B.
    d
    C.
    d1.5
    D.
    d2

  11. A balanced chemical reaction equation conforms to the law of

  12. A.
    conservation of mass
    B.
    Avagadro's hypothesis
    C.
    gaseous volumes
    D.
    none ofthese

  13. An exothermic reaction takes place in an adiabatic reactor. The product temperature __________ reactor feed temperature.

  14. A.
    is always equal to
    B.
    is always greater than
    C.
    is always less than
    D.
    may be greater or less than

  15. Reverse reaction in a chemical equilibrium is favoured by the

  16. A.
    removal of one of the products regularly.
    B.
    increase in the concentration of oneof the products.
    C.
    increase in the concentration of one of the reactants.
    D.
    none of these.

  17. The equilibrium constant for the reversible reaction, , is affected by the

  18. A.
    temperature of the system.
    B.
    presence or absence of inerts.
    C.
    pressure of the system.
    D.
    kinetics of the reaction.

  19. Sum of the powers of the concentration terms in the rate equation is called the __________ of the reaction.

  20. A.
    order
    B.
    overall order
    C.
    molecularity
    D.
    none of these