the-activation-energies-of-the-forward-and-reverse-reactions-of-a-system-are-50-

Question

The activation energies of the forward and reverse reactions of a system are 50.0 kJ/mol (12.0 kcal/mol) and 75 kJ/mol (17.9 kcal/mol), respectively. Create an energy diagram for this system and determine whether the forward reaction is endergonic or exergonic.

Accepted Answer

The reaction is exergonic.

Energy diagram showing forward and reverse activation energies of 50 kJ/mol and 75 kJ/mol.

Answer

The reaction is endergonic.

Energy diagram with forward activation energy of 50 kJ/mol and reverse of 75 kJ/mol, ΔG = 25 kJ/mol.

Answer

The reaction is endergonic.

Energy diagram illustrating reverse activation energy of 75 kJ/mol and forward of 50 kJ/mol, ΔG = 25 kJ/mol.

Answer

The reaction is exergonic.

Energy diagram depicting forward activation energy of 50 kJ/mol and reverse of 75 kJ/mol, ΔG = -25 kJ/mol.