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The unit of rate and rate constant are s...

The unit of rate and rate constant are same for a

A

First order

B

Zero order

C

Second order

D

Third order

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The correct Answer is:
B
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The order of reaction is an experimentally determined quanity. It may be zero, poistive, negative, or fractional. The kinetic equation of nth order reaction is k xx t = (1)/((n-1))[(1)/((a-x)^(n-1)) - (1)/(a^(n-1))] …(i) Half life of nth order reaction depends on the initial concentration according to the following relation: t_(1//2) prop (1)/(a^(n-1)) ...(ii) The unit of the rate constant varies with the order but general relation for the unit of nth order reaction is Units of k = [(1)/(Conc)]^(n-1) xx "Time"^(-1) ...(iii) The differential rate law for nth order reaction may be given as: (dX)/(dt) = k[A]^(n) ...(iv) where A denotes the reactant. The unit of rate and rate constant are same for

The unit of rate of reaction and rate of rate constant are same for a :

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For a reaction, r=k(CH_(3)COCH_(3))^(3//2) then unit of rate of reaction and rate constant respectively is

For 2A underset((excess)+ B + C rarr Products, calculate: (a) Rate expresison, uisng rate law. (b) Units of rate and rate constant. (c ) Effect on rate, if the concentration of A is doubled and that of B is tripled.

The unit of rate constant for zero order reaction is :

Knowledge Check

  • The unit of rate of reaction and rate of rate constant are same for a :

    A
    zero order reaction
    B
    first order reaction
    C
    second order reaction
    D
    third order reaction
    • AAKASH INSTITUTE ENGLISH-CHEMICAL KINETICS-ASSIGNMENT (SECTION A : Objective Type Questions)
    1. The unit of rate and rate constant are same for a

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    2. For a reaction of type aA+bBrarr"products", (-d[A])/(dt) is equal ...

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    3. For a gaseous reaction, the rate of reaction may be expressed in the u...

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    4. A gaseous reaction A(2)(g) rarr B(g) + (1)/(2) C(g) shows increase in ...

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    5. Which of the following will react at the highest rate ?

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    6. Which of the following does not affect the rate of reaction?

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    7. In a reaction 2X+Y rarrX(2),Y the reactant X will disappear at

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    8. During the course of a chemical reaction , the rate constant .

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    9. A reaction involving two different reactants can never be:

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    10. For the hypothetical reaction 2A rarr3C , the reaction rate r in term...

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    11. In the reaction , A+2Bto6C+2D, if the initial rate -(d[A])/(dt) at t= ...

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    12. For the reaction N(2) + 3 H(2) to 2 NH(3) The rate of change of conc...

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    13. The graph plotted between concentration versus time

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    14. For reaction, 2B+A rarr 2C Which of the following is correct ?

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    15. For the homogeneous elementary reaction, A+B rarrC, the unit of rate ...

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    16. The rate law for a reaction between A and B is given by rate = k[A]^(n...

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    17. Consider the reaction, 2A + B rarr C + D , If the rate expression is...

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    18. The rate constant is numerically the same for three reaction of first ...

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    19. Assuring an elementary reaction H2O2+3I^(-)+2H^(+)rarr2H2O+I3^(-) . Th...

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    20. For a reaction A+B rarr products, the rate of reaction was doubled whe...

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