1.

Use the following data to calculate the lattice energy of caesium oxide.Enthalpy of formation of caesium oxide =−233 kJ/molEnthalpy of sublimation of Cs=+78 kJ/molFirst ionization energy of Cs=+375 kJ/molEnthalpy of dissociation of O2 (g)=494 kJ/molFirst electron affinity of O=−141 kJ/molSecond electron affinity of O=+845 kJ/mol

Answer»

Use the following data to calculate the lattice energy of caesium oxide.

Enthalpy of formation of caesium oxide =−233 kJ/mol

Enthalpy of sublimation of Cs=+78 kJ/mol

First ionization energy of Cs=+375 kJ/mol

Enthalpy of dissociation of O2 (g)=494 kJ/mol

First electron affinity of O=−141 kJ/mol

Second electron affinity of O=+845 kJ/mol


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