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The rate of a reaction is directly propo...

The rate of a reaction is directly proportional to the ………….

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Concentration of the reactant
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Knowledge Check

  • A body slides down an inclined plane of inclination theta . While sliding downwards the coefficient of friction is directly proportional to the displacement. The body slides down the plane with a

    A
    constant acceleration g sin `theta`
    B
    constant acceleration (g sin `theta- mug costheta`)
    C
    constant retardation (`mug costheta - g sintheta)`
    D
    variable acceleration

  • A particle is moving in a straight line such that its retardation is directly proportional to its displacement . Decrease in the kinetic energy of the body is directly proportional to

    A
    `x^2`
    B
    `e^x`
    C
    x
    D
    `log _e x`

  • Statement I : Refractive index of a medium is inversely proportional to temperature. Statement II : Refractive index is directly proportional to the density of the medium.

    A
    Statement I is true, statement II is true, statement II is a correct explanation for statement I.
    B
    Statement I is true, statement II is true, statement II is not a correct explanation for statement I.
    C
    Statement I is true, statement II is false.
    D
    Statement I is false, statement II is true. '
    • CHHAYA PUBLICATION-CHEMICAL KINETICS-EXERCISE (Fill in the blanks)
    1. The rate of a reaction is directly proportional to the ………….

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    2. Hydrolysis of ethyl acetate in ......... medium is a ........ order re...

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    3. SO(3)rarrSO(2)+(1)/(2)O(2) , The rate of this reaction with respect to...

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    4. (1)/(2)Ararr2B The relation between the rate of disappearance of A an...

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    5. Plot of rate of reaction against the concentration of the reactant gi...

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    6. N(2)(g)+3H(2)(g)rarr2NH(3)(g) , For this reaction ......... xx rate ...

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    7. The rate constant a reaction at a given temperature is the rate of rea...

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    8. Arrhenius equation is, k=A.e ^(-E(a)//RT) .k = A if the value of T is...

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    9. The coefficient of temperature of a reaction is 2. If the temperature ...

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    10. The activation energy of the forward reaction of a reversible exotherm...

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    11. The half-life(t(1//2)) was determined for a reaction at various initi...

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    12. The half-life (t(1//2)) of a first order reaction= 25min. After 50mi...

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    13. The order of a reaction is 3/2. If concentration is expressed in mol.....

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    14. 2A+Brarr3C+D , This reaction is an elementary reaction. The order and...

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    15. 2A+3Drarr Product. If the order of the reaction with respect to A is 1...

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    16. The minimum energy that the reactant molecules acquire to get activat...

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    17. If activation energy of a reaction is higher than its reaction- rate w...

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    18. According to Arrhenius equation, the slope of the plot of logk against...

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    19. To make effective collisions the barriers that the reacting species s...

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    20. If the units of reaction-rate and rate constant of a reaction are equa...

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