NCERT Class XII Chemistry
Chapter - Chemical Kinetics
Questions with Solutions
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Question : 28
Total: 39
The decomposition of A into product has value of k as 4.5 × 103 – 1 4 – 1
Solution:
Given k 1 = 4.5 × 10 3 s − 1
T 1 = 10 + 273 K
= 283 K ;
k 2 = 1.5 × 10 4 s − 1 ,
T 2 = ? , E a = 60 k J m o l − 1
Applying Arrhenius equation,
log
=
(
)
log
=
(
)
or,log 3.333 = 3133.63 (
)
or,
=
or,0.0472 T 2 = T 2 − 283 0.9528 T 2 = 283
or,T 2 =
= 297 K = 297 − 273 = 24 0 C
Applying Arrhenius equation,
or,
or,
or,
or,
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