Calculate the second electron affinity E e a 2 of oxygen. Find out if O 2 − ion is stable in the gas phase. Explain why it is stable in solid M g O . Given below is the information and the two tables: H e a t o f s u b l i m a t i o n f o r M g ( s ) = + 147.7 k J / m o l B o n d d i s s o c i a t i o n e n e r g y f o r O 2 ( g ) = + 498.4 k J / m o l E e a 1 f o r O ( g ) = − 141.0 k J / m o l N e t e n e r g y c h a n g e f o r f o r m a t i o n o f M g O ( s ) f r o m i t s e l e m e n t s = − 601.7 k J / m o l Concept Introduction: Electron affinity is defined as amount of energy spent when a negative ion is formed by adding an electron to a neutral atom.

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Answer 1

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 6.94CP

Interpretation Introduction

Interpretation:

Calculate the second electron affinity Eea2 of oxygen. Find out if O2− ion is stable in the gas phase. Explain why it is stable in solid MgO. Given below is the information and the two tables:

Heat of sublimation for Mg(s) = + 147.7 kJ/mol

Bond dissociation energy for O2(g) = + 498.4 kJ/mol

Eea1 for O(g) = −141.0 kJ/mol

Net energy change for formation of MgO(s) from its elements = −601.7 kJ/mol

Concept Introduction:

Electron affinity is defined as amount of energy spent when a negative ion is formed by adding an electron to a neutral atom.

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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 6.94CP

Interpretation Introduction

Interpretation:

Calculate the second electron affinity Eea2 of oxygen. Find out if O2− ion is stable in the gas phase. Explain why it is stable in solid MgO. Given below is the information and the two tables:

Heat of sublimation for Mg(s) = + 147.7 kJ/mol

Bond dissociation energy for O2(g) = + 498.4 kJ/mol

Eea1 for O(g) = −141.0 kJ/mol

Net energy change for formation of MgO(s) from its elements = −601.7 kJ/mol

Concept Introduction:

Electron affinity is defined as amount of energy spent when a negative ion is formed by adding an electron to a neutral atom.

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 6.94CP

Interpretation Introduction

Interpretation:

Calculate the second electron affinity Eea2 of oxygen. Find out if O2− ion is stable in the gas phase. Explain why it is stable in solid MgO. Given below is the information and the two tables:

Heat of sublimation for Mg(s) = + 147.7 kJ/mol

Bond dissociation energy for O2(g) = + 498.4 kJ/mol

Eea1 for O(g) = −141.0 kJ/mol

Net energy change for formation of MgO(s) from its elements = −601.7 kJ/mol

Concept Introduction:

Electron affinity is defined as amount of energy spent when a negative ion is formed by adding an electron to a neutral atom.

Expert Solution & Answer

Want to see the full answer?

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 6.94CP

Interpretation Introduction