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CBSE - XII Science - Chemistry - Chemical Kinetics
relation between k and t for first order reaction
Asked by rchaitra1204
7th September 2020,
9:43 AM
CBSE - XII Science - Chemistry - Chemical Kinetics
Definition of zero order, 1st order and 2nd order reaction
Asked by arunhys123
4th July 2020,
7:36 PM
CBSE - XII Science - Chemistry - Chemical Kinetics
The half life for a first order reaction is 10 mins .What percentage of reactant will be left behind after 60mins.
Asked by dhruvrana348
28th June 2020,
8:58 AM
CBSE - XII Science - Chemistry - Chemical Kinetics
What zero order reaction
Asked by shivamsharmag658
27th April 2020,
2:48 PM
CBSE - XII Science - Chemistry - Chemical Kinetics
4.22 sum
Asked by lovemaan5500
6th January 2020,
3:39 PM
CBSE - XII Science - Chemistry - Chemical Kinetics
4.32 numerical plz
Asked by lovemaan5500
6th January 2020,
3:32 PM
CBSE - XII Science - Chemistry - Chemical Kinetics
Please answer
Asked by anjanakurup728
14th November 2019,
12:22 PM
CBSE - XII Science - Chemistry - Chemical Kinetics
4.32 numerical plz
Asked by lovemaan5500
18th September 2019,
10:02 PM
CBSE - XII Science - Chemistry - Chemical Kinetics
Write a condition under which a bimolecular reaction is kinetically first order. Give an example of such a reaction
Asked by sanjeet.kumar
12th March 2019,
2:20 PM
CBSE - XII Science - Chemistry - Chemical Kinetics
Pls answer
Asked by Vidya
7th March 2019,
7:27 PM
CBSE - XII Science - Chemistry - Chemical Kinetics
what is the order of reaction if rate of reaction becomes 3 times and concentration of reaction becomes 9 times
Asked by manpreetkaur19971993
10th January 2019,
7:06 AM
CBSE - XII Science - Chemistry - Chemical Kinetics
please solve it
Asked by rohitraman1115
22nd July 2018,
8:27 PM
CBSE - XII Science - Chemistry - Chemical Kinetics
For which type of reactions order and molecularity have the same value?
Asked by akshitaasia
17th December 2017,
11:43 AM
CBSE - XII Science - Chemistry - Chemical Kinetics
how to identify the orders of any reaction?
Asked by vasturushi
6th December 2017,
2:40 PM
CBSE - XII Science - Chemistry - Chemical Kinetics
how can we determine a reaction whether its a first , second , third , zero, or fraction order reaction?
Asked by vasturushi
18th September 2017,
9:38 PM
CBSE - XII Science - Chemistry - Chemical Kinetics
Q) what will the correct match of (B) & also explain the reason (one or more than one correct )
Asked by araima2001
26th December 2016,
8:48 PM
CBSE - XII Science - Chemistry - Chemical Kinetics
The decomposition of NH3 on platinum surface, is a zero order reaction with k = 2.5 × 10-4 Ms-1. What are the rates of production of N2 and H2?
Asked by Topperlearning User
22nd June 2016,
9:36 AM
CBSE - XII Science - Chemistry - Chemical Kinetics
A reaction is of first order in reactant A and of second order in reactant B. How is the rate of this reaction affected when- (i) the concentration of B alone is increased to three times (ii) the concentrations of A as well as B are doubled?
Asked by Topperlearning User
22nd June 2016,
9:35 AM
CBSE - XII Science - Chemistry - Chemical Kinetics
How 2NO+O2--->2NO2 is a trimolecular reaction??
plzzz tell me
Asked by 2330anurag
14th June 2015,
8:46 PM
CBSE - XII Science - Chemistry - Chemical Kinetics
A reaction is 50% completed in 2 hours and 75% completed in 4 hours, What is the order of reaction ?
Asked by Deepak Singh
4th May 2015,
9:21 PM
CBSE - XII Science - Chemistry - Chemical Kinetics
3 moles of an ideal gas are expanded is isothermally and reversibly from 10m3 to 20m3 at 300k.calcute the work done(r=8.314jk-1mol-1)
Asked by maitridesai429
2nd March 2015,
1:18 PM
CBSE - XII Science - Chemistry - Chemical Kinetics
Q.On what factors does the order of reaction depend?
Asked by Ravi consul
26th December 2014,
11:30 PM
CBSE - XII Science - Chemistry - Chemical Kinetics
How we get to know that 2 moles of NH3 gives out N2 and 3 moles of H2 in the presence of platinum is a zero order even if the 2 moles are present which gives the sum of power 2 as per the definition of order of the reaction but how it is zero and as well as how it is not depending on the concentration of the reactants ?
Asked by deepu
13th September 2014,
12:24 AM
CBSE - XII Science - Chemistry - Chemical Kinetics
A reaction is of first order in reactant A and of second order in reactant B. How is the rate of this reaction affected when (i) the concentration of B alone is increased to three times (ii) the concentrations of A as well as B are doubled?
Asked by Topperlearning User
4th June 2014,
1:23 PM
CBSE - XII Science - Chemistry - Chemical Kinetics
Define 'order of a reaction'.
Asked by Topperlearning User
4th June 2014,
1:23 PM
CBSE - XII Science - Chemistry - Chemical Kinetics
For the reaction Cl2(g) + 2NO(g) 2NOCl(g) the rate law is expressed as rate = k[Cl2] [NO]2 What is the overall order of this reaction?
Asked by Topperlearning User
4th June 2014,
1:23 PM
CBSE - XII Science - Chemistry - Chemical Kinetics
What are the units for the rate constant of first order reaction?
Asked by Topperlearning User
4th June 2014,
1:23 PM
CBSE - XII Science - Chemistry - Chemical Kinetics
The order of a reaction A + B C is zero. Write its rate equation?
Asked by Topperlearning User
4th June 2014,
1:23 PM
CBSE - XII Science - Chemistry - Chemical Kinetics
For the reaction A → B, the rate of reaction becomes twenty seven times when the concentration of A is increased three times. What is the order of the reaction?
Asked by Topperlearning User
28th March 2014,
10:13 AM
CBSE - XII Science - Chemistry - Chemical Kinetics
What do you understand by the 'order of a reaction'? Identify the reaction order from each of the following units of reaction rate constant: (i) L-1mol S-1 (ii) L mol-1 s-1
Asked by Topperlearning User
28th March 2014,
9:22 AM
CBSE - XII Science - Chemistry - Chemical Kinetics
Differentiate between the order of a reaction and its molecularity.
Asked by Topperlearning User
28th March 2014,
9:16 AM
CBSE - XII Science - Chemistry - Chemical Kinetics
Distinguish between the rate of a reaction and rate constant of a reaction.
Asked by Topperlearning User
28th March 2014,
9:15 AM
CBSE - XII Science - Chemistry - Chemical Kinetics
The rate law for a reaction A + H2O → B is rate α [A]. Find the molecularity and order of the reaction.
Asked by Topperlearning User
28th March 2014,
9:07 AM
CBSE - XII Science - Chemistry - Chemical Kinetics
The decomposition of dimethyl ether leads to the formation of CH4, H2 and CO and the reaction rate is given by, Rate = k[CH3OCH3]3/2 The rate of reaction is followed by increase in pressure in a closed vessel and the rate can also be expressed in terms of partial pressure of dimethyl ether i.e. Rate = k(p CH3OCH3)3/2 If pressure is measured in bar and time in minutes, then what are the units of rate and rate constants?
Asked by Topperlearning User
27th March 2014,
3:56 PM
CBSE - XII Science - Chemistry - Chemical Kinetics
Name the factors that influence the rate of a chemical reaction.
Asked by Topperlearning User
27th March 2014,
1:50 PM
CBSE - XII Science - Chemistry - Chemical Kinetics
The rate expression for a chemical reaction 4HBr(g) + O2(g) → 2H2O(g) + 2Br2(g) is Rate = k [HBr] [O2]. Write the probable mechanism of this reaction?
Asked by Topperlearning User
27th March 2014,
1:48 PM
CBSE - XII Science - Chemistry - Chemical Kinetics
In what respect does the rate law differ from the law of mass action? Explain with an example.
Asked by Topperlearning User
27th March 2014,
1:44 PM
CBSE - XII Science - Chemistry - Chemical Kinetics
The reaction 2NO2Cl → 2NO2 + Cl2 have the rate law: r = k [NO2Cl]. What is it mechanism?
Asked by Topperlearning User
27th March 2014,
1:37 PM
