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
Correct Answer:
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