If Acetyl Phosphate Is Made from the Combination of ATP $\Delta$

Essay

If acetyl phosphate is made from the combination of ATP and acetate, what is the $\Delta$ G ^$\circ$ '? How would this reaction proceed within a typical cell?
acetyl phosphate + H₂O $\rarr$ acetate + P_i + H⁺ $\Delta$ G ^$\circ$ '= -43.1 kJ/mol
ATP + H₂O $\rarr$ ADP + P_i + H⁺ $\Delta$ G ^$\circ$ ' = -30.5 kJ/mol