use the information given here and equation δh∘=∑vpδh∘f(products)−∑vrδh∘f(reactants) to calculate the standard enthalpy of formation per mole of zns(s) .
ZnS(s).2ZnS(s)+3O2(g)?2ZnO(s)+2SO2(g)
?H?=?878.2kJ
?Hf(O2(g))=0 kJ/mol; ?Hf(ZnO(s))=?348.3kJ/mol; ?Hf(SO2(g))=?296.8kJ/mol.
kJ/mol