Thermochemistry is the study of heat changes in chemical processess and the enthalpy change of heat can be calculated using few ways, that includes formula, Algebraic method and Born-Haber cycle. (a) Given the following equation : 2CaSO4-2CaO + 2502 + O2 1. By using formula, calculate the enthalpy of formation of Cao if the enthalpy change of system is +1001 kJ and enthalpy of formation of CaSO4 and 50, are - 1432.69 kJ and -296.1 kJ respectively. II. By using the Algebraic method, calculate the enthalpy formation of Cao using the following data: Equations Enthalpy, k] Ca + S + 202 + CaSO4 -1433 S + O2-SO2 -296 2CaSO4 + 2CaO + 2502 + O2 +1001 ul. By showing equations involved, draw Born haber cycle for Cao. (20 marks (b) Identify the type of enthalpy for the following equations : 1. Nat(g) + e-Na2+(9) il. H2(g) + 102(9) - H2O(1) W. Mg(s) -- Mg(9) iv. H2(9) + S(s) + 20%(9) - H2SO40) v. K*(9) + Br" (9) - KBr(s)