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# Energy Diagram and Reactions

APCHEM-KDLLPM

All of the following reactions are non-elementary reactions.

Which of the following is the BEST fit reaction for the following energy diagram?

A

The reaction between aluminum and copper (II) sulfate solution with a $ΔH$ = -12.37 kJ/mol.

B

The reaction that forms hydrogen and nitrogen from ammonia all in the gas state with a $ΔH$ = 30.50 kJ/mol.

C

The dissolution of sodium hydroxide in water with a $ΔH$ = -44.51 kJ/mol.

D

The ionization of hydrochloric acid to make a solution with a $ΔH$ = -74.84 kJ/mol.