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

What are pseudo-first-order reactions?

Advertisements
Advertisements

प्रश्न

What are pseudo-first-order reactions?

थोडक्यात उत्तर
Advertisements

उत्तर

Certain reactions that are expected to be of higher order follow the first-order kinetics. Such reactions are said to be pseudo-first-order reactions.

shaalaa.com
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 6: Chemical Kinetics - Exercises [पृष्ठ १३६]

APPEARS IN

बालभारती Chemistry [English] Standard 12 Maharashtra State Board
पाठ 6 Chemical Kinetics
Exercises | Q 3. vi. a. | पृष्ठ १३६

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?


How will you represent first order reactions graphically.


In a first-order reaction, the concentration of the reactant decreases from 20 mmol dm3 to 8 mmol dm−3 in 38 minutes. What is the half-life of reaction? 


Answer the following in brief.

What are the units of the rate constant?


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


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


The decomposition of phosphine (PH3) on tungsten at low pressure is a first-order reaction. It is because the


Describe the graphical representation of first order reaction.


Write the rate law for the following reaction.

A reaction that is `3/2` order in x and zero order in y.


Write the rate law for the following reaction.

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


A first order reaction has a rate constant 0.00813 min-1. How long will it take for 60% completion?


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.


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?


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 ____________.


What is the order of reaction if the unit of rate constant (k) is mol dm−3 s−1?


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


Half-life period of a first order reaction, \[\ce{A -> product}\] is 3.0 hours. What is the value of rate constant?


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 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:


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?


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


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


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


A radioactive isotope decayed to 17/32 of its original mass after 60 minutes. Find the half-life of this radioisotope.


The plot that represents the zero order reaction is:


If the half-life of a first-order reaction is 10 minutes, find the time required to decrease the concentration of the reactant from 0.08 M to 0.02 M.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×