In 1774 Joseph Priestley Prepared the Element Oxygen by Heating

Multiple Choice

In 1774 Joseph Priestley prepared the element oxygen by heating mercury(II) oxide: HgO(s) → Hg(l) + ½O2(g)
For this reaction, ΔH° = 90.84 kJ and ΔS° = 108 J/K. Which of the following statements is true?

A) The reaction is only spontaneous at low temperatures.
B) The reaction is spontaneous at all temperatures.
C) ΔG° becomes less favorable as the temperature is raised.
D) The reaction is spontaneous only at high temperatures.
E) The reaction is spontaneous under standard conditions at 25°C.