Chemistry - Chemical Kinetics Question with Solution | TestHub

ChemistryChemical KineticsMiscellaneous/MixedEasy2 minPYQ_2020
ChemistryEasysingle choice

For reactions AB and PQ Arrhenius constants are 10 8 and 10 10 respectively. If E AB =600cal/mole and E PQ =1200cal/mole , then find the temperature at which their rate constants are same.
(Given: R=2cal/mole/K )

Options:

Answer:
C
Solution:

A1e-Ea1/RT=A2e-Ea2/RT

A2A1=eEa2-Ea1/RT

102=Exp600RTR=2cal/K-mol

2ln10=6002T

T=3002×2.303K

Stream:NTA_ABHYASSubject:ChemistryTopic:Chemical KineticsSubtopic:Miscellaneous/Mixed
2mℹ️ Source: PYQ_2020

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