Question

Draw an energy diagram for a reaction with ${\mathbf{K}}_{\mathrm{eq}}\mathbf{=}\mathbf{1}$ . What is the value of ${\mathbf{\Delta G}}^o$ in this reaction?

Short answer

An energy profile diagram is a plot of energy against the reaction coordinate.

This shows when the reaction proceeds how the energy of the reactant and product changes.

Step-by-step solution

Energy profile diagram

An energy profile diagram is a plot of energy against the reaction coordinate.

This shows when the reaction proceeds how the energy of the reactant and product changes.

Step 2: Relation between Keq=1 and exergonic reaction

When ${\mathrm{K}}_{\mathrm{eq}}$greater than 1 then the energy is out in the reaction which means the reaction is exergonic.

When${\mathrm{K}}_{\mathrm{eq}}$less than 1 is then the energy is in the reaction which means the reaction is endergonic.

If ${\mathrm{K}}_{\mathrm{eq}}$> 1 then ${\mathrm{\Delta G}}^{\mathrm{o}}$is negative.

If ${\mathbf{K}}_{\mathrm{eq}}$=1 then the reaction does not proceed either in a forward or backward direction.

And for${\mathbf{K}}_{\mathrm{eq}}$=1 then ${\mathbf{\Delta G}}^o$=0