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? a. The reaction is spontaneous at all temperatures. b. The reaction is at equilibrium at 25°C under standard conditions. c. ΔG° becomes less favorable as temperature increases. d. The reaction is spontaneous only at high temperatures. e. The reaction is only spontaneous at low temperatures.

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Q: spontaneous

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