The following mechanism is proposed: C6H5COOH ⇌ C6H5CO2H2+   (fast) C6H5CO2H2+ ⇌ C6H5CO+ + H2O   (fast) C6H5CO+ + HX + H2O ⟶ C6H6NH2 + N2 + CO2  (slow) The overall enthalpy change is -237.6 kJ. Sketch a reaction-energy diagram consistent with the

Chemistry: The Molecular Science
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Author:John W. Moore, Conrad L. Stanitski
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Chapter11: Chemical Kinetics: Rates Of Reactions
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Problem 119QRT
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The following mechanism is proposed:

C6H5COOH ⇌ C6H5CO2H2+   (fast)

C6H5CO2H2+ ⇌ C6H5CO+ + H2O   (fast)

C6H5CO+ + HX + H2O ⟶ C6H6NH2 + N2 + CO2  (slow)

The overall enthalpy change is -237.6 kJ.

Sketch a reaction-energy diagram consistent with the above mechanism and the enthalpy change. Label the enthalpy change and each transition state. Explain the appearance of your graph. 

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