Identify the correct relation between rate constant (k), activation energy (Ea), temperature T (K)?
A
logk2k1=Ea2.303R[1T1−1T2]
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B
logk2k1=EaR[1T1−1T2]
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C
logk2k1=−EaR[1T1−1T2]
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D
logk2k1=−Ea2.303R[1T1−1T2]
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Solution
The correct option is Alogk2k1=Ea2.303R[1T1−1T2] The arrhenius expression is k=Ae−Ea/RT. At two different temperatures, this expression takes the form logk2k1=Ea2.303R[1T1−1T2]. It can also be written as lnk2k1=EaR[1T1−1T2].