NCERT Class XII Chemistry
Chapter - Chemical Kinetics
Questions with Solutions
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Question : 38
Total: 39
The rate of the chemical reaction doubles for an increase of 10 K in absolute temperature from 298 K. Calculate Ea
Solution:
Given : T 1 = 298 K , T 2 = 308 K ,
E a = ? , r 1 = r
( ) r 2 = 2 r
Using Arrhenius equationlog
=
[
−
]
Putting the valueslog
=
[
−
]
0.3010 =
[
]
or,E a =
E a = 52.897 k J m o l − 1
Using Arrhenius equation
Putting the values
or,
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