Calculate `DeltaH_(f)^(@)` for `Ubr_(4)` from the `DeltaG^(@)` of reaction and the `S^(@)` values at 298 K.
`U(s)+2Br_(2)(l)rarrUBr_(4)(s), DeltaG^(@)=-788.6 kJ. " "S^(@)(J//K-"mol")50.3, 152.3, 242.6`

Calculate Delta_(f)H^(@) (in kJ/mol) for Cr_(2)O_(3) from the Delta_(r)G^(@) and the S^(@) values provided at 27^(@) 4Cr(s)+3O_(2)(g)rarr2Cr_(2)O_(3)(s)," "Delta_(r)G^(@)=-2093.4kJ//mol S^(@)("J//K mol") : S^(@)(Cr,s)=24," "S^(@)(O_(2),g)=205," "S^(@)(Cr_(2)O_(3),s)=81

Calculate Delta_(f)H^(@) (in kJ/mol) for Cr_(2)O_(3) from the Delta_(r)G^(@) and the S^(@) values provided at 27^(@) 4Cr(s)+3O_(2)(g)rarr2Cr_(2)O_(3)(s)," "Delta_(r)G^(@)=-2093.4kJ//mol S^(@)("J//K mol") : S^(@)(Cr,s)=24," "S^(@)(O_(2),g)=205," "S^(@)(Cr_(2)O_(3),s)=81

Calculate DeltaG^(Theta) for the following reaction at 298K: CO(g) +((1)/(2))O_(2)(g) rarr CO_(2)(g), DeltaH^(Theta) =- 282.84 kJ Given, S_(CO_(2))^(Theta)=213.8 J K^(-1) mol^(-1), S_(CO(g))^(Theta)= 197.9 J K^(-1) mol^(-1), S_(O_(2))^(Theta)=205.0 J K^(-1)mol^(-1) ,

Calculate DeltaG^(Theta) for the following reaction: CO(g) +((1)/(2))O_(2)(g) rarr CO_(2)(g), DeltaH^(Theta) =- 282.84 kJ Given, S_(CO_(2))^(Theta)=213.8 J K^(-1) mol^(-1), S_(CO(g))^(Theta)= 197.9 J K^(-1) mol^(-1), S_(O_(2))^(Theta)=205.0 J K^(-1)mol^(-1) ,

Calculate DeltaG^(Theta) for the following reaction: CO(g) +((1)/(2))O_(2)(g) rarr CO_(2)(g), DeltaH^(Theta) =- 282.84 kJ Given, S_(CO_(2))^(Theta)=213.8 J K^(-1) mol^(-1), S_(CO(g))^(Theta)= 197.9 J K^(-1) mol^(-1), S_(O_(2))^(Theta)=205.0 J K^(-1)mol^(-1) ,

Calculate standard molar entropy O_(2)(g) from the following thermodynamics data at 300 K : 4Cr(s)+3O_(2)(g)to2Cr_(2)O_(3)(s),DeltaG^(@)=-2093.4 " kJ"//mol DeltaH_(f)^(@)Cr_(2)O_(3)(s)=-1129.05" kJ"//"mole" S_(m)^(@)Cr(s)=24" J"//K" mole" S_(m)^(@)Cr_(2)O_(3)(s)=81" J"//K" mole"

Calculate the standard enthalpy of reaction for the following reaction using the listed enthalpies of reaction : 3Co(s)+2O_(2)(g)rarrCo_(3)O_(4)(s) 2 Co(s)+O_(2)(g)rarr2CoO(s)," "DeltaH_(1)^(@)=-475.8 kJ 6CoO(s)+O_(2)(g)rarr2Co_(3)O_(4)(s),DeltaH_(2)^(@)=-355.0 kJ

Calculate the standard enthalpy of reaction for the following reaction using the listed enthalpies of reaction : 3Co(s)+2O_(2)(g)rarrCo_(3)O_(4)(s) 2 Co(s)+O_(2)(g)rarr2CoO(s)," "DeltaH_(1)^(@)=-475.8 kJ 6CoO(s)+O_(2)(g)rarr2Co_(3)O_(4)(s),DeltaH_(2)^(@)=-355.0 kJ

Calculate the standard enthalpy of reaction for the following reaction using the listed enthalpies of reaction : 3Co(s)+2O_(2)(g)rarrCo_(3)O_(4)(s) 2 Co(s)+O_(2)(g)rarr2CoO(s)," "DeltaH_(1)^(@)=-475.8 kJ 6CoO(s)+O_(2)(g)rarr2Co_(3)O_(4)(s),DeltaH_(2)^(@)=-355.0 kJ

Calculate, the DeltaH at 85^@ for the reaction : Fe_2O_3(s) + 3H_2 to 2Fe (s) + 3H_2O(l) The data are : Delta (298)^@ = -33.29 kJ/mol and