CHEMISTRY-TEXT
8th Edition
ISBN: 9780134856230
Author: Robinson
Publisher: PEARSON
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Question
Chapter 6, Problem 6.32CP
Interpretation Introduction
Interpretation:
Born-Haber cycle for formation of
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
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
Step 5: Ionic compound is formed by the combination of cation and anion. Energy is released in this process.
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Calculate the lattice energy for LiBr(s) given the following:
sublimation energy for Li(s)
+166 kJ/mol
ΔHf for Br(g)
+97 kJ/mol
first ionization energy of Li(g)
+520. kJ/mol
electron affinity of Br(g)
–325 kJ/mol
enthalpy of formation of LiBr(s)
–351 kJ/mol
Calculate the lattice formation
enthalpy (lattice energy) of the
lattice for LiF(s), in kJ/mol, given the
following information:
Sublimation energy
for Li(s)
161 kJ/mol
AH: for F(g)
77 kJ/mol
First ionization
520 kJ/mol
energy of Li(g)
Electron affinity
of F(g)
-328 kJ/mol
Enthalpy of
formation of LİF(s)
-617 kJ/mol
kJ/mol
1
3
4
6.
C
7
8
+/-
х 100
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LO
00
8. Given the following information:
Li(s)
HI(g) → H(g) + I(g)
enthalpy of sublimation of Li(s) = 166 kJ/mol
bond energy of HI = 295 kJ/mol
Li(g)
Li(g) → Li"(g) + e
ionization
energy of Li(g)= 520. kJ/mol
I(g) + e — Г(g)
electron affinity of I(g) = -295 kJ/mol
Li"(g) + I(g) → LiI(s)
lattice energy of LiI(s) = -737 kJ/mol
H2(g) → 2H(g)
Calculate the change in enthalpy for:
bond energy of H2 = 432 kJ/mol
2Li(s) + 2HI(g) –→ H2(g) + 2LİI(s)
a. 330 kJ
b. –534 kJ
c. -483 kJ
d. -984 kJ
e. none of these
Chapter 6 Solutions
CHEMISTRY-TEXT
Ch. 6 - Prob. 6.1PCh. 6 - APPLY 6.2 Which of the following sets of ions are...Ch. 6 - Which atom or ion has the largest radius:...Ch. 6 - Conceptual APPLY 6.4 Which of the following...Ch. 6 - Use the periodic table to order the elements from...Ch. 6 - Given the orbital filling diagrams for the valence...Ch. 6 - Which has the largest third ionization energy: Be,...Ch. 6 - Conceptual APPLY 6.8 The figure on the right...Ch. 6 - Order the following elements from least to most...Ch. 6 - Conceptual APPLY 6.10 Which of the indicated three...
Ch. 6 - What electron configuration does the strontium...Ch. 6 - Prob. 6.12ACh. 6 - Prob. 6.13PCh. 6 - APPLY 6.14 Calculate the energy of electrostatic...Ch. 6 - Which substance has the largest lattice energy:...Ch. 6 - One of the following pictures represents NaCl and...Ch. 6 - Prob. 6.17PCh. 6 - What structural features do ionic liquids havethat...Ch. 6 - PROBLEM 6.18 Compare the following two ionic...Ch. 6 - PROBLEM 6.19 An ionic liquid consisting of a bulky...Ch. 6 - Where on the periodic table would you find the...Ch. 6 - Which of the following spheres is likely to...Ch. 6 - Circle the approximate part or parts of the...Ch. 6 - Prob. 6.24CPCh. 6 - This figure represents the successive ionization...Ch. 6 - In the following drawings, red spheres represent...Ch. 6 - Which of the following drawings is more likely to...Ch. 6 - Prob. 6.28CPCh. 6 - Which of the following alkali metal halides has...Ch. 6 - Which of the following alkali metal halides has...Ch. 6 - Three binary compounds are represented on the...Ch. 6 - Prob. 6.32CPCh. 6 - Prob. 6.33CPCh. 6 - What is the difference between a covalent bond and...Ch. 6 - Prob. 6.35SPCh. 6 - What is the difference between a molecule and an...Ch. 6 - Prob. 6.37SPCh. 6 - How many protons and electrons are in each of the...Ch. 6 - What is the identity of the element X in the...Ch. 6 - Prob. 6.40SPCh. 6 - Prob. 6.41SPCh. 6 - Prob. 6.42SPCh. 6 - Prob. 6.43SPCh. 6 - What doubly positive ion has the following...Ch. 6 - Prob. 6.45SPCh. 6 - Prob. 6.46SPCh. 6 - Which element in the transition-metal series Sc...Ch. 6 - Prob. 6.48SPCh. 6 - Prob. 6.49SPCh. 6 - Order the following ions from smallest to largest:...Ch. 6 - Order the following ions from smallest to largest:...Ch. 6 - Which ion has a larger atomic radius, Cu+ or Cu2+...Ch. 6 - Which ion hasa larger atomic radius, Fe2+ or Fe3+...Ch. 6 - The following ions all have the same number of...Ch. 6 - Which of the ions Se2,F,O2 and Rb+ has the largest...Ch. 6 - Which group of elements in the periodic table has...Ch. 6 - Prob. 6.57SPCh. 6 - Which element in each of the following sets has...Ch. 6 - Order the elements in each set from the smallest...Ch. 6 - (a) Which has the smaller second ionization...Ch. 6 - (a) Which has the smaller fourth ionization...Ch. 6 - Three atoms have the following electron...Ch. 6 - Three atoms have the following electron...Ch. 6 - The first four ionization energies in kJ/mol of a...Ch. 6 - The first four ionization energies in kJ/mol of a...Ch. 6 - Prob. 6.66SPCh. 6 - Prob. 6.67SPCh. 6 - Prob. 6.68SPCh. 6 - Prob. 6.69SPCh. 6 - Why is energy usually released when an electron is...Ch. 6 - Why does ionization energy increase regularly...Ch. 6 - No element has a negative second electron...Ch. 6 - Why does phosphorus have a less negative electron...Ch. 6 - Prob. 6.74SPCh. 6 - What noble-gas configurations and charge are the...Ch. 6 - Each of the following pairs of elements will react...Ch. 6 - Each of the following pairs of elements will react...Ch. 6 - Element X reacts with element Y to give a product...Ch. 6 - Element X reacts with element Y to give a product...Ch. 6 - Calculate the energy change in kilojoules per mole...Ch. 6 - Prob. 6.81SPCh. 6 - Find the lattice energy of LiBr(s) in Table 6.3,...Ch. 6 - Look up the lattice energies in Table 6.3, and...Ch. 6 - Born-4-Iaber cycles, such as those shown in...Ch. 6 - Calculate a lattice energy for CaH2(s) in...Ch. 6 - Calculate the overall energy change in kilojoules...Ch. 6 - The estimated lattice energy for CsF2(s) is +2347...Ch. 6 - Calculate the overall energy change in kilojoules...Ch. 6 - Use the data in Problem 6.88 to calculate an...Ch. 6 - Use the data and the result in Problem 6.84 to...Ch. 6 - Prob. 6.91SPCh. 6 - Calculate overall energy changes in kilojoules per...Ch. 6 - Prob. 6.93SPCh. 6 - We saw in Section 6.7 that the reaction of solid...Ch. 6 - Draw a Born—Haber cycle for the reaction of sodium...Ch. 6 - Use the following information plus the data given...Ch. 6 - Prob. 6.97SPCh. 6 - Prob. 6.98SPCh. 6 - Order the following compounds according to their...Ch. 6 - Prob. 6.100MPCh. 6 - Heating elemental cesium and platinum together for...Ch. 6 - Given the following information, construct a...Ch. 6 - Consider the electronic structure of the element...Ch. 6 - Prob. 6.104MPCh. 6 - The ionization energy of an atom can be measured...
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