Limestone flux (CaCO3) was traditionally added at the smelters. What is the potential detrimental effect on the smelting energy requirement? Estimate a minimum temperature (nearest +100C ) at which to calcine 1t limestone. What can influence any temperature estimated from the standard reaction in reality? Now, calculate the energy ( MWh/tCaO produced) of calcination at that temperature. Hint: Using the Thermo thermodynamic calculator to make calculations quick \& easy requires one to think of rearranging reactions and conditions applicable to State functions (i.e., remembering that the value of a state function is independent of the history of the system)