Match the following state functions to their definitions: standard entropy change of a reaction, 298K and 1atm, reactants in standard states free energy change of a reaction under varying conditions enthalpy change of a reaction under varying conditions standard free energy change of a reaction, 298K and 1atm, reactants in standard states standard enthalpy of formation, forms 1 mole of product, 298K and 1atm, reactants in standard states standard free energy change of formation, forms 1 mole of product, 298K and 1atm, reactants in standard states