Given the tabulated data,what is the lattice energy of crystalline calcium chloride?

A)-1996 kJ/mol
B)-2101 kJ/mol
C)-2255 kJ/mol
D)-2345 kJ/mol
E)-2450 kJ/mol

Question

Given the tabulated data,what is the lattice energy of crystalline calcium chloride?

A)-1996 kJ/mol 
B)-2101 kJ/mol 
C)-2255 kJ/mol 
D)-2345 kJ/mol 
E)-2450 kJ/mol

Quizplus · Accepted Answer

The lattice energy can be calculated using the Born-Haber cycle, which involves the formation of the ionic compound from its elements in their standard states. The sum of the enthalpies of formation, ionization energy, electron affinity, and lattice energy must be equal to the enthalpy of formation of the ionic compound. Using the given data and standard enthalpies of formation, we can calculate the lattice energy of calcium chloride to be -2255 kJ/mol. This is the closest answer choice to our calculated value.

Given the Tabulated Data,what Is the Lattice Energy of Crystalline