Understanding Lattice Energy and the Born-Haber Cycle

What is the primary focus of the video?

• Acid-base reactions and pH calculations

• Organic chemistry and hydrocarbons

• Covalent bonding and molecular geometry

• Lattice energy and the Born-Haber cycle

What is lattice energy associated with?

• Melting of metals

• Breaking covalent bonds

• Forming a crystalline lattice of an ionic compound

• Dissolving ionic compounds in water

Why is the formation of sodium chloride exothermic?

• Due to the sublimation of sodium

• Because of the release of energy when forming a crystalline lattice

• Because of the electron affinity of chlorine

• Due to the high ionization energy of sodium

What law explains the lowering of potential energy in a system of charged particles?

• Charles's Law

• Avogadro's Law

• Coulomb's Law

• Boyle's Law

What is the Born-Haber cycle used for?

• Calculating lattice energy

• Determining the molecular weight of compounds

• Calculating the pH of solutions

• Predicting the color of compounds

What is the first step in the Born-Haber cycle for sodium chloride?

• Formation of chloride ions

• Sublimation of solid sodium

• Formation of sodium ions

• Dissociation of chlorine molecules

Which step in the Born-Haber cycle involves the addition of an electron to chlorine?

• Step 4

• Step 1

• Step 2

• Step 3

What is the enthalpy change associated with the sublimation of solid sodium?

• Negative 108 kJ/mol

• Negative 496 kJ/mol

• Positive 108 kJ/mol

• Positive 496 kJ/mol

What is the electron affinity of chlorine in the Born-Haber cycle?

• Positive 122 kJ/mol

• Negative 122 kJ/mol

• Positive 349 kJ/mol

• Negative 349 kJ/mol

What is the calculated lattice energy for sodium chloride?

• Negative 411 kJ/mol

• Positive 411 kJ/mol

• Negative 788 kJ/mol

• Positive 788 kJ/mol