Using the Thermodynamic Data Below and a Value of -717

question 15

Multiple Choice

Using the thermodynamic data below and a value of -717 kJ/mole for the lattice enthalpy for KCl, calculate the ionization energy of K. $$\begin{array} { l l } \text { Enthalpy of atomization of } \mathrm { K } & + 89 \mathrm {~kJ} / \mathrm { mol } \\\text { Enthalpy of formation of } \mathrm { KCl } ( \mathrm { s } ) & - 437 \mathrm {~kJ} / \mathrm { mol } \\\text { Enthalpy of formation of } \mathrm { Cl } ( \mathrm { g } ) & + 121 \mathrm {~kJ} / \mathrm { mol } \\\text { Electron attachment enthalpy of } \mathrm { Cl } ( \mathrm { g } ) & - 349 \mathrm {~kJ} / \mathrm { mol }\end{array}$$

• A) -576 kJ/mol
• B) +141 kJ/mol
• C) +419 kJ/mol
• D) +576 kJ/mol
• E) +597 kJ/mol

---

Definitions:

Insolvent

Insolvent refers to the inability of an individual or organization to meet its financial obligations as they become due, due to a lack of sufficient assets.

Reserve Requirements

Regulations set by the central bank determining the minimum amount of reserves each bank must hold against deposits.

Fed

The Federal Reserve System, which is the central banking system of the United States responsible for monetary policy.

Interest Rate

The interest rate is the amount charged, expressed as a percentage of principal, by a lender to a borrower for the use of assets.