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1. Considere la descomposicin del carbonato de bario: BaCO3( s )BaO( s )+CO2( g ) a. Con los datos del Apndice C del libro de

1. Considere la descomposicin del carbonato de bario: BaCO3( s )BaO( s )+CO2( g )

a. Con los datos del Apndice C del libro de texto, calcule la presin de equilibrio del CO2 a 1200 K.

2.La reaccin

SO2(g)+2H2S(g) 3 S(s)+2H2O(g) es la base de un mtodo sugerido para la eliminacin de SO2, un contaminante que irrita las vas respiratorias y provoca tos, de los gases de chimenea de las centrales elctricas. Los valores a continuacin pueden ser tiles al responder preguntas sobre el proceso. Calcule la constante de equilibrio K p para la reaccin a una temperatura de 298 K .

Sustancia G f (kJ/mol) H f (kJ/mol)
H2O(g) 228,6 241,8
H2O(l) 237,1 285,8
SO2(g) 300,4 296,9
SO3(g) 370,4 395,2
H2S(g) 33.01 20.17
s 0 0

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