What is the lattice enthalpy of M₂X? What is the formation enthalpy of M₂X? Suppose the X-Xbond enthalpy were bigger, and the ionization enthalpy of M were smaller. Would M₂X be more stable? Or less? 750 kJ/mol -250 kJ/mol More stable. Less stable. It is impossible to tell without more information.

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Chapter1: Chemical Foundations
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This thermodynamic cycle describes the formation of an ionic compound M₂X from a metal element M and nonmetal element X in their standard states. Use it
to answer the questions in the table below.
800.
700.
600.-
500.
400.
300.
enthalpy
(kJ/mol) 200.
100.
0.
-100.
-200.
2M (g) + X (g)
2M (g) + -—-—-X₂ (8)
2M (g) + 2e + x (g)
2.M (²) + — X₂ (8)
What is the lattice enthalpy of M₂X?
What is the formation enthalpy of M₂X?
Suppose the X-X bond enthalpy were bigger,
and the ionization enthalpy of M were smaller.
Would M₂X be more stable? Or less?
750 kJ/mol
-250 kJ/mol
O More stable.
2M* (8) + X²¯ (8)
M₂X (s)
O Less stable.
It is impossible to tell
O without more
information.
Transcribed Image Text:This thermodynamic cycle describes the formation of an ionic compound M₂X from a metal element M and nonmetal element X in their standard states. Use it to answer the questions in the table below. 800. 700. 600.- 500. 400. 300. enthalpy (kJ/mol) 200. 100. 0. -100. -200. 2M (g) + X (g) 2M (g) + -—-—-X₂ (8) 2M (g) + 2e + x (g) 2.M (²) + — X₂ (8) What is the lattice enthalpy of M₂X? What is the formation enthalpy of M₂X? Suppose the X-X bond enthalpy were bigger, and the ionization enthalpy of M were smaller. Would M₂X be more stable? Or less? 750 kJ/mol -250 kJ/mol O More stable. 2M* (8) + X²¯ (8) M₂X (s) O Less stable. It is impossible to tell O without more information.
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