The diagrams represent the potential energy U of a function of the inter-atomic distance r. Which diagram corresponds to stable molecules found in nature?

Question

The diagrams represent the potential energy U of a function of the inter-atomic distance r. Which diagram corresponds to stable molecules found in nature? (A)  (B)  (C)  (D)

Tardigrade Admin · Accepted Answer

When the distance between atoms is large then interatomic force is very weak. When they come closer, force of attraction increases and at a particular distance force becomes zero. When they are further brought closer force becomes repulsive in nature. This can be explained by slope of U-x curve shown in graph (a).

Q. The diagrams represent the potential energy U of a function of the inter-atomic distance r. Which diagram corresponds to stable molecules found in nature?

Q. The diagrams represent the potential energy $U$ of a function of the inter-atomic distance $r .$ Which diagram corresponds to stable molecules found in nature?