For the reaction
H2(g) + F2(g) → 2 HF(g)
ΔG° = -546.6 kJ and ΔS° = 14.1 J/K at 309 K and 1 atm.
This reaction is (reactant, product) ________ favored under standard conditions at 309 K.
The standard enthalpy change for the reaction of 1.64 moles of H2(g) at this temperature would be ______ kJ.