Chemistry
10th Edition
ISBN: 9781305957404
Author: Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
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Chapter 8, Problem 65E
Interpretation Introduction
Interpretation: The energy of sublimation is to be calculated from the given data of lithium iodide reaction.
Concept introduction: The sublimation is the process in which change of phase occur from solid to gas. The energy change occur during this process is called sublimation energy
To determine: The value of energy of sublimation for the given reaction.
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Suppose a chemist discovers a new metallic element and names it "Xercisium" (Xr). Xr exhibits chemical behaviour similar to an alkaline earth.
Xr(s) + Cl2(g) → XrCl2(s)
Lattice energy for XrCl2
-2020. kJ/mol
First Ionization energy of Xr
500. kJ/mol
Second Ionization energy of Xr
950. kJ/mol
Electron affinity of Cl
-348.7 kJ/mol
Bond energy of Cl2
239 kJ/mol
Enthalpy of sublimation (atomization) of Xr
200. kJ/mol
Use the above data to calculate ΔH°f for Xercisium chloride.
Suppose a chemist discovers a new metallic element and names it "Xtrinsium" (Xt).
Xt exhibits chemical behaviour similar to an alkaline earth.
Xt(s) + F2(g) → XtF2(s)
Lattice energy for XtF2
-2360. kJ/mol
First Ionization energy of Xt
520. kJ/mol
Second Ionization energy of Xt
936 kJ/mol
Electron affinity of F
-327.8 kJ/mol
Bond energy of F2
154 kJ/mol
Enthalpy of sublimation (atomization) of Xt
180. kJ/mol
Use the above data to calculate ΔH°f for Xtrinsium fluoride.
Suppose a chemist discovers a new metallic element and names it "Xhaustium" (Xh).Xh exhibits chemical behaviour similar to an alkaline earth.
Xh(s) + F2(g) → XhF2(s)
Lattice energy for XhF2
-2140. kJ/mol
First Ionization energy of Xh
310. kJ/mol
Second Ionization energy of Xh
589 kJ/mol
Electron affinity of F
-327.8 kJ/mol
Bond energy of F2
154 kJ/mol
Enthalpy of sublimation (atomization) of Xh
150. kJ/mol
Use the above data to calculate ΔH°f for Xhaustium fluoride.
Your answer must be accurate and precise to the nearest 1 kJ/mol, as are the given parameters.
Chapter 8 Solutions
Chemistry
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