Use the Following Data to Calculate the Lattice Energy of Lithium

question 71

Multiple Choice

Use the following data to calculate the lattice energy of lithium oxide, Li₂O. $$\begin{array} { l c } { \text { Quantity } } & \text { Magnitude } ( \mathrm { kJ } / \mathbf { m o l } ) \\\text { Ionization energy of } \mathrm { Li } ( g ) & 519 \\\text { Electron affinity of } \mathrm { O } ( g ) \text { for } 2 \mathrm { e } & 603 \\\text { Vaporization energy of } \mathrm { Li } ( s ) & 147 \\\text { Bond energy of } \mathrm { O } _ { 2 } ( g ) & 499 \\\text { Reaction enthalpy: } 2 \mathrm { Li } ( s ) + \frac { 1 } { 2 } \mathrm { O } _ { 2 } ( g ) \rightarrow \mathrm { Li } _ { 2 } \mathrm { O } ( s ) & - 20\end{array}$$

• A) -2,586 kJ/mol
• B) -2,972 kJ/mol
• C) -3,081 kJ/mol
• D) -2,205 kJ/mol
• E) -2,831 kJ/mol

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Definitions:

Genetic Predisposition

A hereditary likelihood of developing certain diseases or conditions based on one's genes.

Proximity

The physical or psychological closeness between people, which can influence attraction and interpersonal relations.

Severity

The degree of intensity, seriousness, or harshness of a situation, condition, or disease.

Sympathetic Division

A part of the autonomic nervous system responsible for the body's 'fight or flight' response, mobilizing energy and resources during times of stress or emergency.