O Attempt 1Consider an ionic compound, MX,, composed of generic metal M and generic gaseous halogen X.Feedback3'• The enthalpy of formation of MX, is AH;= -763 kJ/mol.1. sublimation of the metal (enthalpy• The enthalpy of sublimation of M is AHub.169 kJ/mol.of sublimation)• The first, second, and third ionization energies of M are IE1= 619 kJ/mol, IE2= 1667 kJ/mol, and IE3= 2525 kJ/mol.M(s)M(g)AH sub• The electron affinity of X is AHEA = -307 kJ/mol. (Refer to the hint).2. dissociation of the halogen• The bond energy of X, is BE = 181 kJ/mol.molecule (bond energy)Determine the lattice energy of MX3.X,(g) → 3 X(g)3. ionization of the metal(ionization energy)-3182.5ΔΗaticekJ/molM(g)M³*(g) + 3e-Incorrect4. electron affinity of the halogen3 X(g) + 3е-3X-(g)5. formation of the compound fromits ionsM³+(g) + 3 X-(g) → MX,The overall reaction is the formation ofone mole of the compound from itselements in their standard states.M(s) + X,(g)MX;(s)According to Hess's law, the enthalpyof the overall reaction is equal to thesum of the enthalpies of the steps.

The energy released when 1 mole or solid lattice is formed from the required number of gaseous…

Consider an ionic compound, MX,, composed of generic metal M and generic gaseous halogen X. • The enthalpy of formation of MX, is AH; = -763 kJ/mol. • The enthalpy of sublimation of M is AHsub = 169 kJ/mol. • The first, second, and third ionization energies of M are IEj = 619 kJ/mol, IE2 = 1667 kJ/mol, and IE3 = 2525 kJ/mol. • The electron affinity of X is AHEA = -307 kJ/mol. (Refer to the hint). • The bond energy of X, is BE = 181 kJ/mol. %3D Determine the lattice energy of MX,. -3182.5 AHjattice kJ/mol Incorrect

Consider an ionic compound, MX,, composed of generic metal M and generic gaseous halogen X. • The enthalpy of formation of MX, is AH; = -763 kJ/mol. • The enthalpy of sublimation of M is AHsub = 169 kJ/mol. • The first, second, and third ionization energies of M are IEj = 619 kJ/mol, IE2 = 1667 kJ/mol, and IE3 = 2525 kJ/mol. • The electron affinity of X is AHEA = -307 kJ/mol. (Refer to the hint). • The bond energy of X, is BE = 181 kJ/mol. %3D Determine the lattice energy of MX,. -3182.5 AHjattice kJ/mol Incorrect

Chemistry: The Molecular Science

5th Edition

ISBN:9781285199047

Author:John W. Moore, Conrad L. Stanitski

Publisher:John W. Moore, Conrad L. Stanitski

Chapter16: Thermodynamics: Directionality Of Chemical Reactions

Section: Chapter Questions

Problem 121QRT

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