Given the thermochemical equations:
`Br_(2)(l)+Fe(g)to2BrF(g) DeltaH^(@)=-188KJ`
`Br_(2)(l)+3F_(2)(g)to2BrF_(3)(g) DeltaH^(@)=-768KJ`
detemine `DeltaH^(@)` for the reaction
`BrF(g)+F_(2)(g)toBrF_(3)(g)`

Given that C_((g))+O_(2(g)) to CO_(2(g)) DeltaH^@=-a kJ , 2 CO_((g)) + O_(2(g)) to 2CO_(2(g)) 'DeltaH^@ =-b kJ , Calculate the DeltaH^@ for the reaction C_((g)) +1//2O_(2(g)) to CO_((g))

Fe_(2)O_(2)(s)+(3)/(2)C(s)to(3)/(2)CO_(2)(g)+2Fe(s) DeltaH^(@)=+234.12KJ C(s)+O_(2)(g)toCO_(2)(g) DeltaH^(@)=-393.5KJ Use these equations and DeltaH^(@) value to calculate DeltaH^(@) for this reaction : 4Fe(s)+3O_(2)(g)to2Fe_(2)O_(3)(s)

Fe_(2)O_(2)(s)+(3)/(2)C(s)to(3)/(2)CO_(2)(g)+2Fe(s) DeltaH^(@)=+234.12KJ C(s)+O_(2)(g)toCO_(2)(g) DeltaH^(@)=-393.5KJ Use these equations and DeltaH^(@) value to calculate DeltaH^(@) for this reaction : 4Fe(s)+3O_(2)(g)to2Fe_(2)O_(3)(s)

Use the thermochemical data given to calculate Deltah_(f)^(@) for N_(2)O_(5)(g) in KJ/ mol^(-1) N_(2)(g)+O_(2)(g)to 2NO(g) DeltaH^(@)=+180.5KJ 2NO(g)+O_(2)(g)to2NO_(2)(g) DeltaH^(@)=-114.1Kj 4NO_(2)(g)+O_(2)(g)to 2N_(2)O_(5) DeltaH^(@)=-110.2Kj

H_2(g) + I_2(g) to 2HI(g) , DeltaH = 52.2 kJ 2HI(g) to H_2(g) + I_2(g), DeltaH = kJ

The following two reactions are known: Fe_(2)O_(3)(s)+3CO(g)to 2Fe(s)+3CO_(2)(g),DeltaH=-26.8kJ FeO(s)+CO(g) to Fe(s)+CO_(2)(g),DeltaH=-16.5kJ The value of DeltaH for the following reaction Fe_(2)O_(3)+CO(g) to 2FeO(s)+CO_(2)(g) is