All questions
AP Chemistry
6.7 Bond Enthalpies
2.2 Intramolecular Force and Potential Energy
Multi-Unit
AdvancedMCQGraphicalConceptual17.3k
A grayscale line graph displays potential energy in \(\text{kJ/mol}\) on the vertical axis versus internuclear distance in \(\text{pm}\) on the horizontal axis. A horizontal dashed zero line is marked at \(0\text{ kJ/mol}\). Three distinct smooth curves (Curve 1, Curve 2, Curve 3) are plotted. All three curves rise steeply toward positive potential energy at internuclear distances below \(60\text{ pm}\), reach a well minimum at a negative potential energy, and approach \(0\text{ kJ/mol}\) asymptotically as internuclear distance exceeds \(300\text{ pm}\). Curve 1 (solid line) has its minimum at \((110\text{ pm}, -945\text{ kJ/mol})\). Curve 2 (dashed line) has its minimum at \((121\text{ pm}, -498\text{ kJ/mol})\). Curve 3 (dotted line) has its minimum at \((142\text{ pm}, -155\text{ kJ/mol})\). A legend in the upper right identifies: solid line = Curve 1, dashed line = Curve 2, dotted line = Curve 3. No other curves, data points, labels, text, or annotations appear.
Potential energy curves for \(\text{N}_2\text{(g)}\), \(\text{O}_2\text{(g)}\), and \(\text{F}_2\text{(g)}\) as a function of internuclear distance.
The potential energy curves for three neutral homonuclear diatomic molecules in the gas phase, \(\text{N}_2\text{(g)}\), \(\text{O}_2\text{(g)}\), and \(\text{F}_2\text{(g)}\), are shown in the graph below as a function of internuclear distance.

Which of the following correctly identifies the curve corresponding to \(\text{O}_2\text{(g)}\) and provides the best justification based on the graph and principles of chemical bonding?

Log In to Continue

Accounts are free! Log in to try this question, see explanations, save progress, and more!

Similar Questions

Tools for a 5

The Quiz Lab library of AP Physics quizzes AP aligned mock tests to help you get a 5. With grading, adaptive explanations, and more. Find a Quiz Find, solve, and grade every AP FRQ ever. Find an FRQ Stuck on AP Chemistry? Get unstuck with an AP specialist.1 to 1 tutors who know the exam inside out. Understand weeks of material in a single session.Find a Tutor Learn AP Physics from scratch, quickly. This is the only course you'll need for the year. A self-paced course with everything you need to get a 5. Trusted by over 15,000 students and 200+ schools. Learn fast, or we'll refund your purchase, backed by our 100% satisfaction guarantee. Explore the Course