n 1774 Joseph Priestly prepared oxygen by heating mercury(ll) oxide according to

Question

n 1774 Joseph Priestly prepared oxygen by heating mercury(ll) oxide according to the reaction HgO) ?? Hg() + ½02(g), or which rHc: 90.84 kJ/mol and ?S-108 J/Kmol. Which of the following statements is true for this reaction? Select one: a. The reaction is spontaneous only at low temperatures O b. The reaction is spontaneous at all temperatures. O c. Go becomes less favorable as temperature increases. d. The reaction is spontaneous only at high temperatures. O e. The reaction is at equilibrium at 25°C and 1 atm pressure. Next p

Explanation / Answer

Option D

Since both delta Hrxn and delta Srxn are positive hence T >Delta H /Delta S - Spontaneous at high temperatures

T=90.84x1000/108= 841 K

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