HARDMCQ SINGLEJEE Advanced ChemistryPhysical ChemistryChemical kineticsAchiever Section
For a first order reaction A P, the temperature (T) dependent rate constant (k) was found to follow the equation 1 logk 6.0 T . The pre- exponential factor A and the activation energy Ea, respectively are: (a) 1.0 10 s and 9.2 kJ mol x (b) 6.0s and 16.6 kJ mol (c) 1.0 10 s and 16.6 kJ mol x (d) 1.0 10 s and 38.3 kJ mol x
Answer
D
Explanation
a E logk logA ... i 2.303RT Also given 1 logk 6.0 2000 T On comparing equation (i) and (ii) 6 1 logA 6.0 A 10 s >> and a E 2000 2.303R 1 a E 2000 2.303 8.314 38.29kJmol >> x x
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