Suppose a chemist discovers a new metallic element and names it "Xiguum" (Xi).
Xi exhibits chemical behaviour similar to an alkaline earth.
Xi(s) + Cl2(g) --> XiCl2(s)
Lattice energy for XiCl2 -2300 kJ/mol
First Ionization energy of Xi 420 kJ/mol
Second Ionization energy of Xi 756 kJ/mol
Electron affinity of Cl -348.7 kJ/mol
Bond energy of Cl2 239 kJ/mol
Enthalpy of sublimation (atomization) of Xi 180 kJ/mol
Use the above data to estimate the standard heat of formationH°f for Xiguum chloride.
Xi exhibits chemical behaviour similar to an alkaline earth.
Xi(s) + Cl2(g) --> XiCl2(s)
Lattice energy for XiCl2 -2300 kJ/mol
First Ionization energy of Xi 420 kJ/mol
Second Ionization energy of Xi 756 kJ/mol
Electron affinity of Cl -348.7 kJ/mol
Bond energy of Cl2 239 kJ/mol
Enthalpy of sublimation (atomization) of Xi 180 kJ/mol
Use the above data to estimate the standard heat of formationH°f for Xiguum chloride.