Born-Haber cycle for formation of LiCl ( s ) from its elements should be drawn. Concept introduction: The pictorial representation of formation of ionic solids from its constituent elements is known as Born-Haber cycle. Following are the steps required to draw Born-Haber cycle of any ionic compound: Step 1: Solid metal is converted into gaseous isolated atoms. It takes place by process called sublimation. Step 2: Gaseous molecules are broken down into separate atoms. Energy is supplied to break molecules apart and this is called bond dissociation energy . Step 3: Isolated metal atoms are converted into respective cations with the help of ionization energy. Step 4: Anions are formed from gaseous atoms with the help of electron affinity . Step 5: Ionic compound is formed by the combination of cation and anion. Energy is released in this process.

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Answer 1

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Formula Formula Bond dissociation energy (BDE) is the energy required to break a bond, making it an endothermic process. BDE is calculated for a particular bond and therefore consists of fragments such as radicals since it undergoes homolytic bond cleavage. For the homolysis of a X-Y molecule, the energy of bond dissociation is calculated as the difference in the total enthalpy of formation for the reactants and products. X-Y → X + Y BDE = Δ H f X + Δ H f Y – Δ H f X-Y where, ΔHf is the heat of formation.

Chapter 6, Problem 6.32CP

Interpretation Introduction

Interpretation:

Born-Haber cycle for formation of LiCl(s) from its elements should be drawn.

Concept introduction:

The pictorial representation of formation of ionic solids from its constituent elements is known as Born-Haber cycle. Following are the steps required to draw Born-Haber cycle of any ionic compound:

Step 1: Solid metal is converted into gaseous isolated atoms. It takes place by process called sublimation.

Step 2: Gaseous molecules are broken down into separate atoms. Energy is supplied to break molecules apart and this is called bond dissociation energy.

Step 3: Isolated metal atoms are converted into respective cations with the help of ionization energy.

Step 4: Anions are formed from gaseous atoms with the help of electron affinity.

Step 5: Ionic compound is formed by the combination of cation and anion. Energy is released in this process.

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2. A graph shown below shows first ionization energies for elements from H to Ne. First ionization energy/kJ mol 2500 2000 1500 1000 500 T T T T 1 2 3 5 6 7 8 9 10 Atomic number a) Using arguments of electronic structure, explain why ionization energy of Li is much lower than that of H. (2 points) then dips at O. b) Using the same arguments, explain why ionization energy increases from B to N, and (3 points)

Answer 2

Question

Formula Formula Bond dissociation energy (BDE) is the energy required to break a bond, making it an endothermic process. BDE is calculated for a particular bond and therefore consists of fragments such as radicals since it undergoes homolytic bond cleavage. For the homolysis of a X-Y molecule, the energy of bond dissociation is calculated as the difference in the total enthalpy of formation for the reactants and products. X-Y → X + Y BDE = Δ H f X + Δ H f Y – Δ H f X-Y where, ΔHf is the heat of formation.

Chapter 6, Problem 6.32CP

Interpretation Introduction

Interpretation:

Born-Haber cycle for formation of LiCl(s) from its elements should be drawn.

Concept introduction:

The pictorial representation of formation of ionic solids from its constituent elements is known as Born-Haber cycle. Following are the steps required to draw Born-Haber cycle of any ionic compound:

Step 1: Solid metal is converted into gaseous isolated atoms. It takes place by process called sublimation.

Step 2: Gaseous molecules are broken down into separate atoms. Energy is supplied to break molecules apart and this is called bond dissociation energy.

Step 3: Isolated metal atoms are converted into respective cations with the help of ionization energy.

Step 4: Anions are formed from gaseous atoms with the help of electron affinity.

Step 5: Ionic compound is formed by the combination of cation and anion. Energy is released in this process.

Expert Solution & Answer

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Check out a sample textbook solution

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Answer 3

Question

Formula Formula Bond dissociation energy (BDE) is the energy required to break a bond, making it an endothermic process. BDE is calculated for a particular bond and therefore consists of fragments such as radicals since it undergoes homolytic bond cleavage. For the homolysis of a X-Y molecule, the energy of bond dissociation is calculated as the difference in the total enthalpy of formation for the reactants and products. X-Y → X + Y BDE = Δ H f X + Δ H f Y – Δ H f X-Y where, ΔHf is the heat of formation.

Chapter 6, Problem 6.32CP

Interpretation Introduction

Interpretation:

Born-Haber cycle for formation of LiCl(s) from its elements should be drawn.

Concept introduction:

The pictorial representation of formation of ionic solids from its constituent elements is known as Born-Haber cycle. Following are the steps required to draw Born-Haber cycle of any ionic compound:

Step 1: Solid metal is converted into gaseous isolated atoms. It takes place by process called sublimation.

Step 2: Gaseous molecules are broken down into separate atoms. Energy is supplied to break molecules apart and this is called bond dissociation energy.

Step 3: Isolated metal atoms are converted into respective cations with the help of ionization energy.

Step 4: Anions are formed from gaseous atoms with the help of electron affinity.

Step 5: Ionic compound is formed by the combination of cation and anion. Energy is released in this process.

Expert Solution & Answer

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Check out a sample textbook solution

See solution

Answer 4

Question

Formula Formula Bond dissociation energy (BDE) is the energy required to break a bond, making it an endothermic process. BDE is calculated for a particular bond and therefore consists of fragments such as radicals since it undergoes homolytic bond cleavage. For the homolysis of a X-Y molecule, the energy of bond dissociation is calculated as the difference in the total enthalpy of formation for the reactants and products. X-Y → X + Y BDE = Δ H f X + Δ H f Y – Δ H f X-Y where, ΔHf is the heat of formation.

Chapter 6, Problem 6.32CP

Interpretation Introduction