Compound AG: (kJ/mol) Use the data given here to calculate the values of AGrxn at 25 C for the reaction described by the equation A +387.7 B +608.8 A + B FC +402.0 AGixn = kJ If AH ixn and ASixn are both negative values, what drives the spontaneous reaction and in what direction at standard conditions? The spontaneous reaction is enthalpy-driven to the right. O entropy-driven to the right. entropy-driven to the left. enthalpy-driven to the left