Química·Andalucía·2016·Extraordinaria·Reserva BEjercicio5Opción B2 puntosPara la reacción 2 HX2S(g)+SOX2(g)→2 HX2O(l)+3 S(s)\ce{2H2S (g) + SO2 (g) -> 2H2O (l) + 3S (s)}2HX2S(g)+SOX2(g)2HX2O(l)+3S(s) a 25∘C25^\circ\text{C}25∘C.DatosΔHf0(kJ⋅mol−1)\Delta H_f^0 (\text{kJ}\cdot\text{mol}^{-1})ΔHf0(kJ⋅mol−1) a 25∘C:HX2S(g)=−20,6;SOX2(g)=−296,8;HX2O(l)=−285,825^\circ\text{C}: \ce{H2S(g)} = -20{,}6; \ce{SO2(g)} = -296{,}8; \ce{H2O(l)} = -285{,}825∘C:HX2S(g)=−20,6;SOX2(g)=−296,8;HX2O(l)=−285,8S0(J⋅mol−1⋅K−1)S^0 (\text{J}\cdot\text{mol}^{-1}\cdot\text{K}^{-1})S0(J⋅mol−1⋅K−1) a 25∘C:HX2S(g)=205,8;SOX2(g)=248,2;HX2O(l)=69,9;S(s)=31,825^\circ\text{C}: \ce{H2S(g)} = 205{,}8; \ce{SO2(g)} = 248{,}2; \ce{H2O(l)} = 69{,}9; \ce{S(s)} = 31{,}825∘C:HX2S(g)=205,8;SOX2(g)=248,2;HX2O(l)=69,9;S(s)=31,8aDetermine ΔH0\Delta H^0ΔH0 y ΔS0\Delta S^0ΔS0.bPrediga si es espontánea o no, a esa temperatura.
