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In a multistep reaction, find out the overall rate of reaction:

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Important Questions on Chemical Kinetics

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Chemistry>Physical Chemistry>Chemical Kinetics>Order of a Reaction
aP+bQ→Products, when P is doubled keeping Q constant rate increases 2 times, when P is constant and Q is doubled, rate increases four times. The overall order is
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Chemistry>Physical Chemistry>Chemical Kinetics>Order of a Reaction
The time required for 60% completion of a first order reaction is 50 min. The time required for 93.6% completion of the same reaction will be
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Chemistry>Physical Chemistry>Chemical Kinetics>Order of a Reaction
In a chemical reaction A+2B→ products, when concentration of A is doubled, rate of the reaction increases 4 times and when concentration of B alone is doubled rate continues to be the same. The order of the reactions is
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Chemistry>Physical Chemistry>Chemical Kinetics>Order of a Reaction
The units for the rate constant and the rate of reaction are same for a reaction. What will be the order of the reaction?
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Chemistry>Physical Chemistry>Chemical Kinetics>Order of a Reaction
For the elementary reaction M→N, the rate of disappearance of M increases by a factor of 8 upon doubling the concentration of M. The order of the reaction with respect to M is
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Chemistry>Physical Chemistry>Chemical Kinetics>Order of a Reaction
A first order reaction takes 40 minutes for 30% completion. Calculate the half life of reaction.
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Chemistry>Physical Chemistry>Chemical Kinetics>Order of a Reaction
One gram of (A) decays by β-emission to 0.125 g in 200 years. The half-life period of the reaction is
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Chemistry>Physical Chemistry>Chemical Kinetics>Order of a Reaction
What is the correct difference between first and second order reactions?
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Chemistry>Physical Chemistry>Chemical Kinetics>Order of a Reaction
It is true that:
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Chemistry>Physical Chemistry>Chemical Kinetics>Order of a Reaction
The reaction 2NO g+O2 g→2NO2 g is of the first-order. If the volume of the reaction vessel is reduced to 1/3, the rate of the reaction would be
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Chemistry>Physical Chemistry>Chemical Kinetics>Order of a Reaction
Hydrolysis of ester is a first order reaction. For this reaction, the correct statement is
HARD
Chemistry>Physical Chemistry>Chemical Kinetics>Order of a Reaction
In the reaction,

P + Q → R + S

the time taken for 75% reaction of P is twice the time taken for 50% reaction of P. The concentration of Q varies with reaction time as shown in the figure.The overall order of the reaction is:

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Chemistry>Physical Chemistry>Chemical Kinetics>Order of a Reaction

What will be the order of the reaction for hydrolysis of methyl acetate with NaOH by using the data provided?

Time (min)                       0       5       10       15
Volume of acid (mL)   10.12    6.24    1.40   0.981

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Chemistry>Physical Chemistry>Chemical Kinetics>Order of a Reaction
Gaseous cyclobutene isomerizes to butadiene in a first order process which has a 'K' value of 3.3×10-4 s-1 at 153°C. The time in minutes it takes for the isomerization to proceed 40% to completion at this temperature is_____. (Rounded off to the nearest integer)
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Chemistry>Physical Chemistry>Chemical Kinetics>Order of a Reaction
The rate of a reaction is found to depend upon two concentration variables. What should be the order of the reaction?
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Chemistry>Physical Chemistry>Chemical Kinetics>Order of a Reaction
Half-life period for a first order reaction is 10 minutes. How much time is required to change the concentration of the reactants 0.08 M to 0.01 M?
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Chemistry>Physical Chemistry>Chemical Kinetics>Order of a Reaction

For the chemical reaction

2O3⟶3O2, the reaction proceeds as follows

O3⇌O2+O (Fast)

O+O3⟶2O2, (Slow)

the rate law expression should be given as

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Chemistry>Physical Chemistry>Chemical Kinetics>Order of a Reaction
The rate constant is same for 3 reactions of order I, II and III, respectively, the unit of concentration being in moles per litre. If the concentration of the reactant is unity, the rates of reaction R1, R2, R3 will be
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Chemistry>Physical Chemistry>Chemical Kinetics>Order of a Reaction
Decomposition of H2O2 follows a first order reaction. In fifty minutes the concentration of H 2 O 2 decreases from 0.5 to 0.125 M in one such decomposition. When the concentration of H2O2 reaches 0.05 M , the rate of formation of O2 will be:
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Chemistry>Physical Chemistry>Chemical Kinetics>Order of a Reaction
It takes 1h for a first order reaction to go to 50% completion. The total time required for the same reaction to reach 87.5%  completion will be