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Choose the most correct option. The rate law for the reaction aA + bB → P is rate = k[A] [B]. The rate of reaction doubles if _________. - Chemistry

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प्रश्न

Choose the most correct option.

The rate law for the reaction aA + bB → P is rate = k[A] [B]. The rate of reaction doubles if _________.

पर्याय

  • concentrations of A and B are both doubled.

  • [A] is doubled and [B] is kept constant

  • [B] is doubled and [A] is halved

  • [A] is kept constant and [B] is halved.

MCQ
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उत्तर

The rate law for the reaction aA + bB → P is rate = k[A] [B]. The rate of reaction doubles if [A] is doubled and [B] is kept constant

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  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 6: Chemical Kinetics - Exercises [पृष्ठ १३५]

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बालभारती Chemistry [English] Standard 12 Maharashtra State Board
पाठ 6 Chemical Kinetics
Exercises | Q 1. i. | पृष्ठ १३५

संबंधित प्रश्‍न

The rate of reaction for certain reaction is expressed as:

`1/3(d[A])/dt=-1/2(d[B])/dt=-(d[C])/dt`

 The reaction is ______.


Answer the following in one or two sentences.

For the reaction,

\[\ce{N2_{(g)} + 3H2_{(g)} -> 2NH3_{(g)}}\],

what is the relationship among `("d"["N"_2])/"dt"`, `("d"["H"_2])/"dt"` and `("d"["NH"_3])/"dt"`?


Answer the following in brief.

How instantaneous rate of reaction is determined?


In a chemical reaction, \[\ce{2A + B -> C + D}\] Find the INCORRECT statement.


If concentration of reactant 'A' is increased by 10 times the rate of reaction becomes 100 times. What is the order of reaction, if rate law is, rate = k[A]x?


For the reaction \[\ce{H2_{(g)} + I2_{(g)} ⇌ 2HI_{(g)}}\], the average rate of reaction is expressed as ____________.


For the reaction \[\ce{A + 2B -> C}\], the instantaneous rate of reaction at a given instant can be represented by ____________.


In a reaction \[\ce{2A + P -> A2P}\], the reactant 'A' disappears at ____________.


The rate of disappearance of SO2 in the reaction \[\ce{2SO2 + O2 -> 2SO3}\] is 1.28 × 10−3 mol dm−3 s−1. Then the rate of formation of SO3 is ____________ mol dm−3 s−1.


For the reaction \[\ce{N2 + 3H2 ⇌ 2NH3}\]; if `(∆["NH"_3])/(∆"t")` = 2 × 10−4 mol dm−3 s−1, the value of `(-Δ["N"_2])/(∆"t")` would be ____________.


Which of the following expressions is CORRECT for the rate of formation of Br2?

\[\ce{5Br^-_{( aq)} + BrO^-_{3(aq)} + 6H^+_{( aq)} -> 3Br2_{(aq)} + 3H2O_{(l)}}\]


For the reaction,

\[\ce{2NO(g) + O2(g) -> 2NO2(g) ->[d(NO2)][dt] = 0.052 mol dm^{-3} s^{-1}}\]

Calculate rate of consumption of NO (g).


What is the relation between `("d"["H"_2])/"dt" and ("d"["NH"_3])/"dt"`?


In the reaction A + 3B → 2C, the rate of formation of C is ______.


Explain the term instantaneous rate of a reaction.


Explain factors affecting the rate constant of a chemical reaction.


For the reaction, \[\ce{3I^-(aq) + S2O^2-_8(aq) -> I^-_3(aq) + 2SO^2-_4(aq)}\]

`(d[SO_4^(2-)])/dt = 2.2 xx 10^(-2)` M/s at a particular time.

Calculate `(a) -(d[I^-])/dt   (b) -(d[S_2O_8^(2-)])/dt   (c) (d[I_3^-])/dt`


What is the rate law for reaction

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


The rate constant for a first order reaction is 0.58 s-1 at 300 K and 0.026 s-1 at 290 K. What is the energy of activation? (R = 8.314 J K-1 mol-1)


For the reaction, \[\mathrm{N_{2(g)}+3H_{2(g)}\longrightarrow2NH_{3(g)}}\]
N2(g) disappears at a rate of 2×10-4mol dm-3 s-1. Calculate rate of disappearance of H2?


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