Concept explainers
Use bond energies (table 3-3), values of electron affinities (table 2-7), and the ionization energy of hydrogen (1312 kJ/mol) to estimate ∆E for each of the following reactions.
a. HF(g) → H+(g) + F−(g)
b. HCl(g) → H+(g) + Cl−(g)
c. HI(g) → H+(g)+ I−(g)
d. H2O(g) → H+(g) + OH−(g)
(
(a)
Interpretation: Using the given values of bond energy, the electron affinity and the ionization energy of hydrogen to be calculated for the given reactions.
Concept introduction: The change in energy for a given chemical equation is the sum of the bond energy, the ionization energy and the electron affinity values of the respective steps involved in the chemical reaction.
To determine: The change in energy for the given reaction,
Answer to Problem 135AE
The change in energy is
Explanation of Solution
Explanation:
The chemical reaction involved is,
The various steps included in the total process are,
The total energy change
The total energy change for a given chemical reaction is the sum of bond energy, the ionization energy and the electron affinity value of the respective steps involved in the reaction.
(b)
Interpretation: Using the given values of bond energy, the electron affinity and the ionization energy of hydrogen to be calculated for the given reactions.
Concept introduction: The change in energy for a given chemical equation is the sum of the bond energy, the ionization energy and the electron affinity values of the respective steps involved in the chemical reaction.
To determine: The change in energy for the given reaction,
Answer to Problem 135AE
The change in energy is
Explanation of Solution
The chemical reaction involved is,
The various steps included in the total process are,
The total energy change
The total energy change for a given chemical reaction is the sum of bond energy, the ionization energy and the electron affinity value of the respective steps involved in the reaction.
(c)
Interpretation: Using the given values of bond energy, the electron affinity and the ionization energy of hydrogen to be calculated for the given reactions.
Concept introduction: The change in energy for a given chemical equation is the sum of the bond energy, the ionization energy and the electron affinity values of the respective steps involved in the chemical reaction.
To determine: The change in energy for the given reaction,
Answer to Problem 135AE
The change in energy is
Explanation of Solution
The chemical reaction involved is,
The various steps included in the total process are,
The total energy change
The total energy change for a given chemical reaction is the sum of bond energy, the ionization energy and the electron affinity value of the respective steps involved in the reaction.
(d)
Interpretation: Using the given values of bond energy, the electron affinity and the ionization energy of hydrogen to be calculated for the given reactions.
Concept introduction: The change in energy for a given chemical equation is the sum of the bond energy, the ionization energy and the electron affinity values of the respective steps involved in the chemical reaction.
To determine: The change in energy for the given reaction,
Answer to Problem 135AE
The change in energy is
Explanation of Solution
The chemical reaction involved is,
The various steps included in the total process are,
The total energy change
The total energy change for a given chemical reaction is the sum of bond energy, the ionization energy and the electron affinity value of the respective steps involved in the reaction.
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Chapter 8 Solutions
Chemistry (Instructor's)
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