AP Chemistry: 2.2 Intramolecular Force and Potential Energy – Exam Style questions with Answer- MCQ

Question

Which of the following can be inferred from the diagram above that shows the dependence of potential energy on the internuclear distance between two atoms?
(A) The atoms form a bond with a bond length of 25 pm.
(B) The atoms form a bond with a bond length of 75 pm.
(C) The net force between the atoms is attractive at 25 pm.
(D) The net force between the atoms is attractive at 75 pm.

▶️Answer/Explanation

Ans:B

Question

 The potential energy as a function of internuclear distance for three diatomic molecules,\( X_2\), \(Y_2\), and \(Z_2\), is shown in the graph above. Based on the data in the graph, which of the following correctly identifies the diatomic molecules, \(X_2\),\( Y_{2}\), and \(Z_2\)?

▶️Answer/Explanation

Ans:A

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