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What are the units of rate constant for the first order reaction?

What are the units of rate constant for the first order reaction?

Grade:12th pass

9 Answers

Rituraj Tiwari
askIITians Faculty 1792 Points
3 years ago
LetRbe the rate of reaction.
For first order reaction,
R=K[A]1
⇒K=R[A]^−1
Whereas,Kand[A]are rate constant and initial concentration of reactant respectively.
Therefore,
Unit of rate constant=(molL−1)^(1−n)sec−1
For first order reaction,
n=1
Unit of rate constant=sec−1
Hence the unit of rate constant for first order reaction issec−1.
Vikas Amritiya
askIITians Faculty 230 Points
3 years ago
Dear student

 

Let R be the rate of reaction.
For first order reaction,
R=K[A]1
K=R[A]1
Whereas, K and [A] are rate constant and initial concentration of reactant respectively.
Therefore,
Unit of rate constant =(molL1)1nsec1
For first order reaction,
n=1
Unit of rate constant =sec1
Hence the unit of rate constant for first order reaction is sec1.
adilakshmigogada 27
101 Points
3 years ago
Let R be the rate of reaction.
For first order reaction,
R=K[A]1
K=R[A]1
Whereas, K and [A] are rate constant and initial concentration of reactant respectively.
Therefore,
Unit of rate constant =(molL1)1nsec1
For first order reaction,
n=1
Unit of rate constant =sec1
Hence the unit of rate constant for first order reaction is sec1
./
adilakshmigogada 27
101 Points
3 years ago
Let R be the rate of reaction.
For first order reaction,
R=K[A]1
K=R[A]1
Whereas, K and [A] are rate constant and initial concentration of reactant respectively.
Therefore,
Unit of rate constant =(molL1)1nsec1
For first order reaction,
n=1
Unit of rate constant =sec1
Hence the unit of rate constant for first order reaction is sec1/
 
adilakshmigogada 27
101 Points
3 years ago
Let R be the rate of reaction.
For first order reaction,
R=K[A]1
K=R[A]1
Whereas, K and [A] are rate constant and initial concentration of reactant respectively.
Therefore,
Unit of rate constant =(molL1)1nsec1
For first order reaction,
n=1
Unit of rate constant =sec1
Hence the unit of rate constant for first order reaction is sec1
‘/
adilakshmigogada 27
101 Points
3 years ago
Let R be the rate of reaction.
For first order reaction,
R=K[A]1
K=R[A]1
Whereas, K and [A] are rate constant and initial concentration of reactant respectively.
Therefore,
Unit of rate constant =(molL1)1nsec1
For first order reaction,
n=1
Unit of rate constant =sec1
Hence the unit of rate constant for first order reaction is sec1
]’/
adilakshmigogada 27
101 Points
3 years ago
Let R be the rate of reaction.
For first order reaction,
R=K[A]1
K=R[A]1
Whereas, K and [A] are rate constant and initial concentration of reactant respectively.
Therefore,
Unit of rate constant =(molL1)1nsec1
For first order reaction,
n=1
Unit of rate constant =sec1
Hence the unit of rate constant for first order reaction is sec1
/,.
adilakshmigogada 27
101 Points
3 years ago
Let R be the rate of reaction.
For first order reaction,
R=K[A]1
K=R[A]1
Whereas, K and [A] are rate constant and initial concentration of reactant respectively.
Therefore,
Unit of rate constant =(molL1)1nsec1
For first order reaction,
n=1
Unit of rate constant =sec1
Hence the unit of rate constant for first order reaction is sec1
,.,.
irshad hussain
99 Points
2 years ago
k is the first-order rate constant, which has units of 1/s. The method of determining the order of a reaction is known as the method of initial rates. The overall order of a reaction is the sum of all the exponents of the concentration terms in the rate equation.

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