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Consider the energy profile diagram below. (The profile is not drawn to scale).

A:  Consider the following activation energies for the overall reaction   R → P. 

Efora= 55 kJ mol1

Ereva=  106 kJ mol1

 

What is the enthalpy change for the overall reaction   R → P?  

ΔH=   kJ mol1

 

 

B:   Which of the following statements regarding the overall reaction   R → P  is/are incorrect?  Select all that apply.  

 

 

Three activated complexes are formed in this reaction 

 

Step SP  has a smaller rate constant than step PS

 

Step QS is the rate-determining step 

 

The step RQ has the largest rate constant 

 

ΔrH  is positive

 

Species S  is an intermediate

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Anika Arnaldo
Anika ArnaldoLv10
18 Mar 2021
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