Chapter 7 – Chemical Kinetics and Nuclear Chemistry (Level 1 and Level 2)
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Statement -1 : Molecularity has no meaning for a complex reaction Statement – 2 : Molecularity defined only for RDS
03
Jun
Statement -1 : Molecularity has no meaning for a complex reaction Statement – 2 : Molecularity defined only for RDS Statement -1 : Molecularity has no meaning for a complex reaction Statement - 2 : Molecularity defined only for RDS June 3, 2021 Category: Chapter 7 - Chemical Kinetics and Nuclear Chemistry (Level 1 and [...]
In the reaction A gives k1 B gives k2 C gives k3 D, if k1 > k2 > k3 then the rate determing step of the reaction is
03
Jun
In the reaction A gives k1 B gives k2 C gives k3 D, if k1 > k2 > k3 then the rate determing step of the reaction is if k1 > k2 > k3 then the rate determing step of the reaction is In the reaction A gives k1 B gives k2 C gives k3 [...]
The following mechanism has been proposed for the exothermic catalyzed complex reaction: A+B−→FastIAB→k1AB+I→k2P+A If k1 is much smaller than k2, the most suitable qualitative plot of potential energy (PE) versus reaction coordinates (R.C.) for the above reaction is
03
Jun
The following mechanism has been proposed for the exothermic catalyzed complex reaction: A+B−→FastIAB→k1AB+I→k2P+A If k1 is much smaller than k2, the most suitable qualitative plot of potential energy (PE) versus reaction coordinates (R.C.) for the above reaction is The following mechanism has been proposed for the exothermic catalyzed complex reaction: A+B−→FastIAB→k1AB+I→k2P+A If k1 is much [...]
For reaction A→B, the rate constant k1=A^-Ea1/(RT)1 and for the reaction X→Y, the rate constant k2 = A^-Ea1/(RT)2 . If A1=10^8,A2 = 10^10 and Ea1 = 600 cal /mol, Ea2 = 1800 cal/mol then the temperature at which k1=k2 is (Given :R=2 cal/K-mol)
03
Jun
For reaction A→B, the rate constant k1=A^-Ea1/(RT)1 and for the reaction X→Y, the rate constant k2 = A^-Ea1/(RT)2 . If A1=10^8,A2 = 10^10 and Ea1 = 600 cal /mol, Ea2 = 1800 cal/mol then the temperature at which k1=k2 is (Given :R=2 cal/K-mol) A2 = 10^10 and Ea1 = 600 cal /mol Ea2 = 1800 [...]
A reaction takes place in various steps. The rate constant for first, second, third and fifth steps are k1,k2,k3 and k5 respectively The overall rate constant is given by k=k2/k3(k1/k5)1/2 If activation energy are 40, 60, 50, and 10 kJ/mol respectively, the overall energy of activation (kJ/mol) is :
03
Jun
A reaction takes place in various steps. The rate constant for first, second, third and fifth steps are k1,k2,k3 and k5 respectively The overall rate constant is given by k=k2/k3(k1/k5)1/2 If activation energy are 40, 60, 50, and 10 kJ/mol respectively, the overall energy of activation (kJ/mol) is : 50 60 A reaction takes place [...]
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50 ,
60 ,
A reaction takes place in various steps. The rate constant for first ,
and 10 kJ/mol respectively ,
k2 ,
k3 and k5 respectively The overall rate constant is given by k=k2/k3(k1/k5)1/2 If activation energy are 40 ,
second ,
the overall energy of activation (kJ/mol) is : ,
third and fifth steps are k1 ,
The rate constant for two parallel reactions were found to be 10^−2 dm^3 mol^−1s^−1 and 4×10^−2 dm^3 mol^−1s^−1. If the corresponding energies of activation of the parallel reaction are 100 and 120 kJ/mol respectively, what is the net energy of activation (Ea) of A?
03
Jun
The rate constant for two parallel reactions were found to be 10^−2 dm^3 mol^−1s^−1 and 4×10^−2 dm^3 mol^−1s^−1. If the corresponding energies of activation of the parallel reaction are 100 and 120 kJ/mol respectively, what is the net energy of activation (Ea) of A? The temperature coefficient of a reaction is : June 3, 2021 [...]
A hydrogenation reaction is carried out at 500 K. If the same reaction is carried out in the presence of a catalyst at the same rate with same frequency factor, the temperature required is 400K. What is the activation energy of the reaction if the catalyst lowers the activation energy barrier by 16 kJmol^−1.
03
Jun
A hydrogenation reaction is carried out at 500 K. If the same reaction is carried out in the presence of a catalyst at the same rate with same frequency factor, the temperature required is 400K. What is the activation energy of the reaction if the catalyst lowers the activation energy barrier by 16 kJmol^−1. A [...]
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Chapter 7 - Chemical Kinetics and Nuclear Chemistry (Level 1 and Level 2)
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N Awasthi Physical Chemistry
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A hydrogenation reaction is carried out at 500 K. If the same reaction is carried out in the presence of a catalyst at the same rate with same frequency factor ,
the temperature required is 400K. What is the activation energy of the reaction if the catalyst lowers the activation energy barrier by 16 kJmol^−1. ,
For given hypothetical elementary parallel reaction, Initially only 2 moles of A are present. The total no. of moles of A, B and C at the end of 75% reaction are:
03
Jun
For given hypothetical elementary parallel reaction, Initially only 2 moles of A are present. The total no. of moles of A, B and C at the end of 75% reaction are: B and C at the end of 75% reaction are: For given hypothetical elementary parallel reaction Initially only 2 moles of A are present. [...]
A gaseous compound A reacts by three independent first order process (as shown in figure) with rate constant 2×10^−3,3×10^−3 and 1.93×10^−3sec^−1 for products B, C and D respectively, If initially pure A was taken in a closed container with p=8 atm then the partial pressure of B (in atm) after 100 sec from starting the experiment.
03
Jun
A gaseous compound A reacts by three independent first order process (as shown in figure) with rate constant 2×10^−3,3×10^−3 and 1.93×10^−3sec^−1 for products B, C and D respectively, If initially pure A was taken in a closed container with p=8 atm then the partial pressure of B (in atm) after 100 sec from starting the [...]
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Chapter 7 - Chemical Kinetics and Nuclear Chemistry (Level 1 and Level 2)
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N Awasthi Physical Chemistry
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Tags:
3×10^−3 and 1.93×10^−3sec^−1 for products B ,
A gaseous compound A reacts by three independent first order process (as shown in figure) with rate constant 2×10^−3 ,
C and D respectively ,
If initially pure A was taken in a closed container with p=8 atm then the partial pressure of B (in atm) after 100 sec from starting the experiment. ,
For the first order homogeneous gaseous reaction A→2B+C, if the total pressure after time ‘t’ was Pt and after long time (t gives infinite) was P infinite then k in terms of Pi, Pt & t is
03
Jun
For the first order homogeneous gaseous reaction A→2B+C, if the total pressure after time ‘t’ was Pt and after long time (t gives infinite) was P infinite then k in terms of Pi, Pt & t is For the first order homogeneous gaseous reaction A→2B+C if the total pressure after time 't' was Pt and [...]