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महाराष्ट्र राज्य शिक्षण मंडळएचएससी विज्ञान (सामान्य) इयत्ता १२ वी

Order of reaction for which unit of rate constant is mol dm–3 s–1 is _______.

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प्रश्न

Order of reaction for which unit of rate constant is mol dm–3 s–1 is _______.

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उत्तर

Order of reaction for which unit of rate constant is mol dm–3 s–1 is 0.

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पाठ 6: Chemical Kinetics - Multiple choice questions

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संबंधित प्रश्‍न

Choose the most correct option.

The order of the reaction for which the units of the rate constant are mol dm-3 s-1 is _______.


Choose the most correct option.

Slope of the graph ln[A]t versus t for first-order reaction is _________.


Answer the following in one or two sentences.

For the reaction, \[\ce{CH3Br_{(aq)} + OH^{-}_{(aq)} -> CH3OH^{\ominus}_{(aq)} + Br^{\ominus}_{(aq)}}\], rate law is rate = \[\ce{k[CH3Br][OH^\ominus]}\]

How does reaction rate changes if \[\ce{[OH^\ominus]}\] is decreased by a factor of 5?


Answer the following in brief.

For the reaction 2A + B → products, find the rate law from the following data.

[A]/M [B]/M rate/M s-1
0.3 0.05 0.15
0.6 0.05 0.30
0.6 0.2 1.20

A First order reaction is 50% complete in 69.3 minutes. Time required for 90% completion for the same reaction is _______.


The rate law relates to the rate of a chemical reaction in terms of _______.


For the reaction \[\ce{2NO_{(g)} + 2H_{2(g)} -> N_{2(g)} + 2H2O_{(g)}}\],

The rate law is, rate = k[NO]2 [H2].

What is the overall order of reaction?


Define order of reaction with suitable examples.


For the reaction 2A + B → C, rate of disappearance of A 0.076 mol s –1.

  1. What is the rate of formation of C?
  2. What is the rate of consumption of B?
  3. What is the rate of the overall reaction?

In a hypothetical reaction,

\[\ce{2A + B -> Products}\]. Rate = k [A]2 [B]

Molar concentration of 'B' is kept constant and molar concentration of 'A' is tripled, then the rate of reaction will ____________.


Select the rate law that corresponds to the data shown for the following reaction:

\[\ce{A + B -> C}\]

Exp. [A]
mol dm−3
[B]
mol dm−3
Initial Rate
mol dm−3
1. 0.012 0.035 0.10
2. 0.024 0.070 0.80
3. 0.024 0.035 0.10
4. 0.012 0.070 0.80

The reaction \[\ce{A + B -> P}\], is second order in A and first order in B. What is the rate law for the reaction?


In the reaction, \[\ce{N2 + 3H2 -> 2NH3}\], the rate of disappearance of H2 is 0.02 Mis. The rate of appearance of NH3 is ______.


What is the molecularity and order of the following reaction if rate law is, rate = k[O3][O] respectively.

\[\ce{O_{3(g)} + O_{(g)} -> 2O_{2(g)}}\]


In the reaction \[\ce{2SO_{2_{(g)}} O_{2_{(g)}} -> 2SO_{3_{(g)}}}\], the rate of disappearance of SO2 is 1.28 × 10-5 M/s. What is the rate of appearance of SO3?


Molarity of H2SO4 is 18 M. Its density is 1.8 g/ml. Hence molality is ______.


Which of the following unit is used to express the rate of a reaction?


Which of the following statement is not true for a reaction having rate law r = k[H2][I2]?


The correct order of raaii of F, F-, O and O2- is ______.


Write the rate law for the following reaction:

A reaction that is second order in NO and first order in Br2.


For a chemical reaction A → 7 products, the rate of reaction doubles when the concentration of A is increased by a factor 4. The order of the reaction is ______.


The rate constant of a reaction ______.


For the reaction A + B → P.

If [B] is doubled at constant [A], the rate of reaction doubled. If [A] is triple and [B] is doubled, the rate of reaction increases by a factor of 6. Calculate the rate law equation.


The rate constant for the reaction,

2N2O5(g) → 2N2O4(g) + O2(g) is 4.98 × 10-4 s-1.

What is the order of reaction?


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