Consider the gas-phase transfer of an electron from a sodium atom to a chlorine atom

Chemistry: The Central Science | 11th Edition | ISBN: 9780136006176 | Authors: Theodore E. Brown, H. Eugene H LeMay, Bruce E. Bursten, Catherine Murphy, Patrick Woodward

Problem 7.108 Chapter 7

Chemistry: The Central Science | 11th Edition

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Chemistry: The Central Science | 11th Edition | ISBN: 9780136006176 | Authors: Theodore E. Brown, H. Eugene H LeMay, Bruce E. Bursten, Catherine Murphy, Patrick Woodward

Chemistry: The Central Science | 11th Edition

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Problem 7.108

Consider the gas-phase transfer of an electron from a sodium atom to a chlorine atom: Na{g) + Cl{g) ----> Na+{g) + Cl-{g) (a) Write this reaction as the sum of two reactions, one that relates to an ionization energy and one that relates to an electron affinity. (b) Use the result from part (a), data in this chapter, and Hess's law to calculate the enthalpy of the above reaction. Is the reaction exothermic or endothermic? (c) The reaction between sodium metal and chlorine gas is highly exothermic and produces NaCl(s), whose structure was discussed in Section 2.7. Comment on this observation relative to the calculated enthalpy for the aforementioned gas-phase reaction.

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Spencer Kociba CHEM 101 Lecture 11/15/16 THERMOCHEMISTRY ● Enthalpy ○ Represented as ΔH ○ Internal energy + pressure*volume ■ We will mostly be concerned with constant pressure. This is where the formula ΔH = ΔE + PΔV comes from ○ ΔH = q (enthalpy=heat gained or lost in the system) ● Properties of Enthalpy (ΔH ) ○...

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Chapter 7, Problem 7.108 is Solved
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Textbook: Chemistry: The Central Science
Edition: 11
Author: Theodore E. Brown, H. Eugene H LeMay, Bruce E. Bursten, Catherine Murphy, Patrick Woodward
ISBN: 9780136006176

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