For the reaction H2(g) + S(s) → H2S(g), ΔH° = –20.2 kJ/mol and ΔS° = +43.1 J/K·mol. Which of these statements is true?
◦ The reaction is only spontaneous at low temperatures.
◦ The reaction is spontaneous at all temperatures.
◦ ΔG° becomes less favorable as temperature increases.
◦ The reaction is spontaneous only at high temperatures.
◦ The reaction is at equilibrium at 25°C under standard conditions.