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Class 12 NEET Chemistry Chemical Kinetics Questions
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© examsnet.com
Question : 68
Total: 73
Activation energy of a chemical reaction can be determined by
(1998)
evaluating rate constants at two different temperatures
evaluating velocities of reaction at two different temperatures
evaluating rate constant at standard temperature
changing concentration of reactants.
Validate
Solution:
According to Arrhenius equation :
log
k
2
k
1
=
E
a
2.303
R
[
T
2
−
T
1
T
2
T
1
]
where
E
a
=
activation energy
R
=
gas constant
=
8.314
JK
−
1
mol
−
1
k
1
and
k
2
are rate constants of the reaction at two different temperatures
T
1
and
T
2
respectively.
© examsnet.com
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