मराठी
महाराष्ट्र राज्य शिक्षण मंडळएचएससी विज्ञान (सामान्य) इयत्ता १२ वी

Time required for 100% completion of a zero order reaction is _______.

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प्रश्न

Time required for 100% completion of a zero order reaction is _______.

पर्याय

  • a/k

  • a/2k

  • a.k

  • 2k/a

MCQ
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उत्तर

Time required for 100% completion of a zero-order reaction is a/k.

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पाठ 6: Chemical Kinetics - Multiple choice questions

संबंधित प्रश्‍न

Answer the following in one or two sentences.

What are the units for rate constants for zero-order and second-order reactions if time is expressed in seconds and concentration of reactants in mol/L?


What are pseudo-first-order reactions?


Answer the following in brief.

What is a zeroth-order reaction?


Explain pseudo first order reaction with a suitable example.


For a first order reaction \[\ce{A ->Product}\] with initial concentration x mol L−1, has a half life period of 2.5 hours. For the same reaction with initial concentration `("x"/2)` mol L−1 the half life is


For a first-order reaction, the rate constant is 6.909 min−1 the time taken for 75% conversion in minutes is


Assertion: rate of reaction doubles when the concentration of the reactant is doubles if it is a first-order reaction.

Reason: rate constant also doubles.


Write the rate law for the following reaction.

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


What is the value of rate constant of first order reaction, if it takes 15 minutes for consumption of 20% of reactants?


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 rate of the reaction \[\ce{A + B -> C}\] is 3.6 × 10−2 mol dm−3 s−1 when [A] = 0.3 mol dm−3 and [B] = 0.2 mol dm−3. Calculate k if reaction is first order in A and zero order in B.


The rate constant of a reaction has same units as the rate of reaction. The reaction is of ____________.


In a first order reaction, the concentration of the reactant is reduced to 25% in one hour. The half-life period of the reaction is ____________.


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


The rate and the rate constants of the reaction, \[\ce{A + 2B -> C + D}\] are 8 × 10−3 mol dm−3 s−1 and 2 × 10−3 s−1 respectively. The concentrations of A and B are 4 mol dm−3 each. The overall order of the reaction 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 ____________.


Reaction given below follows first order kinetics:

\[\ce{2N2O2 -> 4NO2 + O2}\]

Calculate the rate constant of reaction if concentration of N2O2 is 0.05 M and rate of reaction is 1.5 × 10−6 mol L−1 s−1?


For a zero order reaction, the plot of [A]t vs t is linear. The slope of the line is equal to ____________.


The rate of formation of B at time t for reaction \[\ce{2A -> 3B}\] is equal to ____________.


The time required to decompose SO2Cl2 to half of it's initial amount is 60 minutes. Calculate rate constant for this first order reaction.


A first order reaction, A → B takes 100 minutes for it's 90% completion. What is the rate constant of reaction?


What is the unit of rate constant for the zero order reaction?


Which of the following reactions is not of the first order?


The half-life of first order reaction is 1.7 hour. What is its rate constant?


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?


A first order reaction takes 10 minute for 30% completion. Find rate constant of the reaction.


Calculate half life of reaction if rate constant of first order reaction is 0.0178 minute−1.


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