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Question: Answered & Verified by Expert
The potential energy U between two atoms in a diatomic molecule as a function of the distance x between atom has been shown in the adjoining figure. The atoms are

PhysicsKinetic Theory of GasesNEET
Options:
  • A Attracted when x lies between A and B and are repelled when x lies between B and C
  • B Attracted when x lies between B and C and are repelled when x lies between A and B
  • C Attracted when they reach B
  • D repelled when they reach B
Solution:
1454 Upvotes Verified Answer
The correct answer is: Attracted when x lies between B and C and are repelled when x lies between A and B
Negative value of potential energy decreases from C to B and there after increases. It shows that kinetic energy increases from C to B and there after it decreases. So, there is attraction from C to B and after which repulsion results.

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