Concept explainers
Q1. According to Coulomb's law, if the separation between two particles of the same charge is doubled, what happens to the potential energy of the two particles?
a) becomes twice as high as it was before the distance separation.
b) becomesone-half as high as it was before the separation.
c) does not change.
d) becomes one-fourth as high as it was before the separation.
Introduction: Coulomb’s law describes about the attractions and repulsions that take place between charged particles.
Answer to Problem 1SAQ
Correct answer: If the separation between two particles of the same charge is doubled, the potential energy of the two particles becomes one-half as high as it was before the separation. Therefore, option (b) is correct.
Explanation of Solution
Justify reasons for the correct statement:
Coulomb’s law states that the potential energy
Here,
If the separation between two particles of the same charge is doubled, calculate the new potential energy
The potential energy of the two particles becomes one-half as high as it was before the separation.
Hence, option (b) is correct.
Justify reasons for the incorrect statements:
Option (a) is that the potential energy of the two particles becomes twice as high as it was before the separation. According to Coulomb’s law, the potential energy
Option (c) is that the potential energy of the two particles does not change. According to Coulomb’s law, the potential energy
Option (d) is that the potential energy of the two particles becomes one-fourth as high as it was before the separation. According to Coulomb’s law, the potential energy
Hence, options (a), (c), and (d) are incorrect.
If the separation between two particles of the same charge is doubled, the potential energy of the two particles becomes one-half as high as it was before the separation.
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Chapter 8 Solutions
Chemistry: A Molecular Approach
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