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Calculate the standard enthalpy of react...

Calculate the standard enthalpy of reaction `ZnO(s)+CO(g)rarrZn(s)+CO_(2)(g)`
Given, `Delta H_(f)(ZnO,s)=-350KJ//"mole",DeltaH_(f)^(@)(CO_(2),g)= -390KJ//"mole", DeltaH_(f)^(@)(CO,g)=-110KJ//"mole"`

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`Delta H^(@) {Delta H_(f )(CO_(2),g)-(DeltaH_(f)^(@)(ZnO,s)+DeltaH_(f)^(@)(CO,g))}`
`Delta H_("reaction")^(@)= -390-(-350-100)=70KJ`
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