How much heat will be required at constant pressure to form 1.28 kg of `CaC_(2)` from CaO(s) & C(s) ? Given :
`{:(Delta_(f) H^(@) (CaO "," S) , = , "-152 kcal/mol") , (Delta_(f)H^(@) (CaC_(2) ","s) , = , "-14 kcal/mol"), (Delta_(f) H^(@) (CO "," g) , = , "-26 kcal/mol"):}`

Calculate Delta_(r) H^(@) for Fe_(2) O_(3) (s) + 3 CO(g) to 2 Fe (s) + 3 CO_(2) (g) Given : Delta_(f) H^(@) (Fe_(2) O_(3) , s) = -822.2 kJ/mol Delta_(f) H^(@) (CO , g) = -110.5 kJ//mol , Delta_(f) H^(@) (CO_(2) , g) = -393.5 kJ/mol

Calculate the heat required to make 6.4 kg of CaC_(2) from CaO(s) and C(s) from the reaction : CaO(s) + 3 C(s) rarr CaCl_(2)(s) + CO(g) given that Delta_(f)H^(theta) (CaO) = - 151.6 kcal . Delta_(f)H^(theta) (CaC_(2)) = - 14.2 kcal . Delta_(f)H^(theta) (CO) = - 26.4 kcal

Calculate the heat required to make 6.4kg of CaC_2 from CaO(s) and C(s) from the reaction that DeltaH_f^@(CaO) = -151.6 kcal DeltaH_f^@(CaC_2) = -14.2 kcal DeltaH_f^@(CO) = -26.4 kcal .

Calculate the heat required to make 6.4kg of CaC_2 from CaO(s) and C(s) from the reaction that DeltaH_f^@(CaO) = -151.6 kcal DeltaH_f^@(CaC_2) = -14.2 kcal DeltaH_f^@(CO) = -26.4 kcal .

In certan areas where coal is cheap, artificial gas is produced for household use by the ''water gas'' raction C(s) +H_(2)O(g) underset(600^(@)C)rarr H_(2)(g) +CO(g) Assuming that coke is 100% carbon, calculate the maximum heat obtainable at 298K from the combustion of 1kg of coke, and compare this value to the maximum heat obtainable at 298K from burning the water was produced from 1.00 kg of coke. GIven: Delta_(f)H^(Theta), H_(2)O(l) =- 68.32 kcal//mol Delta_(f)H^(Theta),CO_(2) (g) =- 94.05 kcal//mol Delta_(f)H^(Theta),CO(g) =- 26.42 kcal//mol

In certan areas where coal is cheap, artificial gas is produced for household use by the ''water gas'' raction C(s) +H_(2)O(g) underset(600^(@)C)rarr H_(2)(g) +CO(g) Assuming that coke is 100% carbon, calculate the maximum heat obtainable at 298K from the combustion of 1kg of coke, GIven: Delta_(f)H^(Theta), H_(2)O(l) =- 68.32 kcal//mol Delta_(f)H^(Theta),CO_(2) (g) =- 94.05 kcal//mol Delta_(f)H^(Theta),CO(g) =- 26.42 kcal//mol

Calculate K_(sp) for AgCI . Given: Delta_(f)H^(Θ) Ag^(o+) = 25.3 kcal mol^(-1) Delta_(f)H^(Θ) C1^(Θ) =- 40.0 kcal mol^(-1) Delta_(f)H^(Θ) AgC1=- 30.36 kcal mol^(-1) S^(Θ) Ag^(o+), S^(Θ) C1^(Θ) , and S^(Θ) AgC1 are 17.7, 13.2 and 23.0 cal mol^(-1)