हिंदी

Rate constant of a reaction is 3.6 × 10–3 s–1. The order of reaction is ______. - Chemistry

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प्रश्न

Rate constant of a reaction is 3.6 × 10–3 s–1. The order of reaction is ______.

विकल्प

  • first

  • second

  • third

  • zero

MCQ
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उत्तर

Rate constant of a reaction is 3.6 × 10–3 s–1. The order of reaction is first.

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अध्याय 6: Chemical Kinetics - Multiple choice questions

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एससीईआरटी महाराष्ट्र Chemistry [English] 12 Standard HSC
अध्याय 6 Chemical Kinetics
Multiple choice questions | Q 3

संबंधित प्रश्न

Answer the following in one or two sentences.

Write the relationships between rate constant and half-life of the first order and zeroth-order reactions.


Answer the following in one or two sentences.

How do the half-lives of the first order and zero-order reactions change with the initial concentration of reactants?


Give one example of a pseudo first-order reaction.


Write a mathematical expression for integrated rate law for zero-order reaction.


For the reaction 2NOBr → 2NO2 + Br2, the rate law is rate = k[NOBr]2. If the rate of a reaction is 6.5 × 10–6 mol L–1 s–1, when the concentration of NOBr is 2 × 10–3 mol L–1. What would be the rate constant of the reaction?


The rate constant of the first order reaction is 1.386 min–1. Calculate the time required for 80% reactant to decompose?


The rate constant of a reaction is 5.8 × 10−2 s−1. The order of the reaction is ____________.


If 75% of a first order reaction was completed in 60 minutes, 50% of the same reaction under the same conditions would be completed in ____________.


Describe the graphical representation of first order reaction.


How long would it take to electroplate a spoon with 0.1 mol of silver (108 g/mol) at a constant current of 2.0 A using AgNO3?


The integrated rate equation for first-order reaction, A → product, is ______.


For the first order reaction, plot of log10 [A]t against time 't' is a straight line with a negative slope equal to ____________.


The order of the reaction for which the unit of rate constant is s−1 is ____________.


For first order reaction the slope of the graph of log10 [A]t Vs. time is equal to ____________.


A first order reaction is 75% completed in 60 minutes, the time required for it's 50% completion is ____________.


The slope of a graph, log [A]t versus 't' for a first order reaction is −2.5 × 10−3 s−1. The rate constant for the reaction is ____________.


The time taken for 80% of a first order reaction to be complete is approximately ____________.


The initial concentration of reactant (A) is 2 mol dm−3 for a zero order reaction \[\ce{A -> B}\]. The rate constant (k) is related to its half-life `("t"_(1//2))` by the equation:


The half-life of a first order reaction is 6.0 hour. How long will it take for the concentration of reactant to decrease from 0.4 M to 0.12 M?


Which among the following is an example of zero order reaction?


A first order reaction is 50% completed in 16 minutes. The percentage of reactant that will react in 32 minutes is ____________.


A certain zero order reaction has rate constant 0.025 M s-1. What will be the concentration of reactant 'A' after 15 seconds, if initial concentration is 0.50 M?


Rate constant for zero order reaction is 2 × 10-2 mol L-1 s-1. If the concentration of the reactant after 25 sec. is 0.5 M, what is the initial concentration of reactant?


For zero order reaction, when [A]t is plotted against time (t), the slope of the straight line obtained is equal to ______.


Define the half-life of a first-order reaction.


Calculate half-life of a first order reaction in minute if the rate constant is 1 × 10-3 s-1.


Half-life of a first order reaction is 30 minutes and initial concentration of reactant is 0.1 M.

What is half-life of the reaction if initial concentration of reactant is doubled? 


Which of the following correctly represents integrated rate law equation for a first order reaction in a gas phase?


The half-life period for the first order reaction is 1.7 hrs. How long will it take for 20% of the reactant to disappear?


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