The discussion focuses on the displacement reaction of more reactive metals with solid metal oxides, emphasizing that significant heat is required to initiate the reaction. Once started, the reaction is exothermic. The example provided illustrates the reaction of zirconium with alumina, represented by the equation 1.5 Zr + Al2O3 = 1.5 ZrO2 + Al, which has a Gibbs free energy change of -17.8 kJ/mol at 1000°C, despite a positive standard enthalpy change of +47 kJ/mol.
PREREQUISITESChemistry students, educators, and professionals interested in thermodynamics and metal reactivity, particularly those studying displacement reactions and their applications in materials science.
sgstudent said:When a more reactive metal displaces a solid metal oxide, a lot if heat is required for the reaction to occur.
However, both metal and metal oxide can be solid for the reaction to take place right?