The Potential Energy for the Interaction Between the Two Atoms

question 2

Multiple Choice

The potential energy for the interaction between the two atoms in a diatomic molecule is U = A/x¹² - B/x⁶, where A and B are constants and x is the interatomic distance.The magnitude of the force that one atom exerts on the other is:

• A)12A/x¹³ - 6B/x⁷
• B)-13A/x¹³ + 7B/x⁷
• C)-11A/x¹¹ + 5B/x⁵
• D)72A/x¹² - 72B/x⁶
• E)A/x¹³ - B/x⁷

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