
Concept explainers
(a)
Interpretation:
The value of
Concept Introduction:
The wave function represents the exact position of the electron in an atom. The wave function is represented by
(a)

Answer to Problem 7.6IA
The value of
The value of
Explanation of Solution
The value of
The normalized
The expectation value of
Where,
The wave function is real. So,
Substitute the value of
The value of
Compare the integral
Substitute the value of
Therefore, the value of
The expectation value of
Substitute the value of
The value of
Compare the integral
Substitute the value of
Therefore, the value of
Substitute the value of
Hence, the value of
The value of
The expectation value of the momentum of the electron is calculated by the following expression.
On further solving the above integration,
The value of
Compare the integral
Substitute the value of
Therefore, the value of
The expectation value of the square of the momentum of the particle is calculated by the following expression.
The value of
Compare the integral
Substitute the value of
Therefore, the value of
Substitute the value of
Hence, the value of
(b)
Interpretation:
The value of
Concept Introduction:
A system that experiences a restoring force when displaced from its equilibrium position is known as the harmonic oscillator. The restoring force experienced by the system is directly proportional to the displacement. Masses connected to the spring and the pendulums are the examples of harmonic oscillator.
(b)

Answer to Problem 7.6IA
The value of
The value of
Explanation of Solution
The value of
The value of
Substitute the value of
Hence, the value of
The value of
The value of
Substitute the value of
Hence, the value of
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Chapter 7 Solutions
Atkins' Physical Chemistry
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