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Give one example of pseudo first order reaction. - Chemistry

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प्रश्न

Give one example of pseudo first-order reaction.

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उत्तर

Hydrolysis of methyl acetate.

\[\ce{CH3COOCH_{3(aq)} + H2O_{(l)} -> CH3COOH_{(aq)} + CH3OH_{(aq)}}\]

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अध्याय 6: Chemical Kinetics - Very short answer questions

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एससीईआरटी महाराष्ट्र Chemistry [English] 12 Standard HSC
अध्याय 6 Chemical Kinetics
Very short answer questions | Q 1

संबंधित प्रश्न

Answer the following in brief.

How will you represent the zeroth-order reaction graphically?


Answer the following in brief.

Derive the integrated rate law for the first-order reaction,

\[\ce{A_{(g)} -> B_{(g)} + C_{(g)}}\] in terms of pressure.


Solve

In a first-order reaction, the concentration of the reactant decreases from 20 mmol dm-3 to 8 mmol dm-3 in 38 minutes. What is the half-life of reaction? 


Solve

The half-life of a first-order reaction is 1.7 hours. How long will it take for 20% of the reactant to react?


The rate of catalysed reaction is large than the uncatalysed reaction as _______.


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 ____________.


Write the rate law for the following reaction.

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


From the following data, show that the decomposition of hydrogen peroxide is a reaction of the first order:

t (min) 0 10 20
V (ml) 46.1 29.8 19.3

Where t is the time in minutes and V is the volume of standard KMnO4 solution required for titrating the same volume of the reaction mixture.


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


For first order reaction the concentration of reactant decreases from 0.2 to 0.1 M in 100 minutes. What is the rate constant of the reaction?


A first order reaction is 25% completed in 40 minutes. What is the rate constant k tor the reaction?


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


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


If time required to decrease concentration of reactant from 0.8 M to 0.2 M is 12 hours, the half life of this first order reaction 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 ____________.


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


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


The integrated rate law is a direct relationship between time and ______


Obtain the expression for half-life and rate constant of the first-order reaction.


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


If the rate constant for a first-order reaction is k, the time (t) required for the completion of 99% of the reaction is given by:


The rate constant and half-life of a first order reaction are related to each other as ______.


Which among the following reactions is an example of pseudo first order reaction?


Which is the relation between half life and rate constant for a zero order?


Consider the following reaction.

\[\ce{SO2(g) + 1/2 O2(g) <=>[K1] SO3(g)}\]

\[\ce{2SO3(g)<=>[K2] 2SO2(g) + O2(g)}\]

What is the relation between K1 and K2?


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