Chapter 6, Problem 6.97CP

Interpretation Introduction

Interpretation:

Construct a Born-Haber cycle to calculate the lattice energy of $Ca{C}_2\left(s\right)$ based on the following information:

$NetenergychangefortheformationofCa{C}_2\left(s\right)=\text{ - 60 }kJ/mol$

$HeatofsublimationforCa\left(s\right)=+178kJ/mol$

$E_{i1}forCa\left(g\right)=\text{ + 590 }kJ/mol$

$E_{i2}forCa\left(g\right)=\text{ + 1145 }kJ/mol$

$HeatofsublimationforC\left(s\right)=+\text{ 7}17kJ/mol$

$Bonddissociationenergyfor{C}_2\left(g\right)=+\text{ 614 }kJ/mol$

$E_{ea1}for{C}_2\left(g\right)=\text{ - 315 }kJ/mol$

$E_{ea2}for{C}_2\left(g\right)=\text{ + 410 }kJ/mol$

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