Consider an ionic compound, mx, composed of generic metal m and generic, gaseous halogen x. the enthalpy of formation of mxis δh∘f=−427kj/mol. the enthalpy of sublimation of mis δhsub=135kj/mol. the ionization energy of mis ie=433kj/mol. the electron affinity of xis δhea=−307kj/mol. (refer to the hint). the bond energy of x2is be=175kj/mol. determine the lattice energy of mx.

The lattice energy of MX is -523.5 kJ/mol.

Explanation:

....[1]

....[2]

....[3]

....[4]

....[5]

....[6]

[1] = [2] + (1/2)[5] + [6] - [3] - [4]

The lattice energy of MX is -523.5 kJ/mol.

metals are good conductor of electricity. it has free electrons on their surface. according to electron pool theory, each atom present in a metal crystal losses all of its valence electron and as a result a pool of free is form. these pool of electrons are free to move and   conduct electricity easily   while making metal as good conductor.

the correct answer is a. the ability of electrons to flow throughout the metal.

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