Compound A AG; (kJ/mol) +387.7 Use the data given in the table to calculate the value of Gan at 25 C for the reaction described by the equation A+B=0 B +636.4 C +402.0 KJ mol AG= If AHA and AS are both positive values, what drives the spontaneous reaction and in what direction at standard conditions? The spontaneous reaction is entropy-driven to the left. The spontaneous reaction is entropy-driven to the right The spontaneous reaction is enthalpy-driven to the right The spontaneous reaction is enthalpy-driven to the left