From the following data answer the questions: Reaction: A+B→P
[A]M
[B]M
Initial rate
M sec−1
300 K
400 K
2.5×10−4
3.0×10−5
5.0×10−4
2.0×10−3
5.0×10−4
6.0×10−5
4.0×10−3
1.0×10−3
6.0×10−5
1.6×10−2
The energy of activation for reaction (kJ/mol) is:
A
20.83
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B
13.83
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C
15.23
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D
10.23
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Solution
The correct option is B13.83 The arrhenius equation is k=A.e−Ea/RT. At two different tempratures, this equation becomes lnk2k1=EaR[1T1−1T2] Substitute values in the above equation.