question_answer

The factor of \[\Delta G\] values is important in metallurgy. The \[\Delta G\] values for the following reactions at \[800{}^\circ C\] are given as: \[{{S}_{2}}(s)+2{{O}_{2}}(g)\xrightarrow{{}}2S{{O}_{2}}(g);\,\,\Delta G=-\,544\,\,kJ\] \[2Zn(s)+{{S}_{2}}\text{(s)}\xrightarrow[{}]{}2ZnS(s);\,\,\Delta G=-\,293\text{ }kJ\] \[2Zn(s)+{{O}_{2}}(g)\xrightarrow{{}}2ZnO(s);\,\,\Delta G=-\,480\,kJ\] Calculate the \[\Delta G\] for the reaction: \[2ZnS(s)+3{{O}_{2}}\text{(}g\text{)}\xrightarrow{{}}2ZnO(s)+2S{{O}_{2}}(g)\]

Answer:

?731