1 / 6

LeChatlier’s Principle

LeChatlier’s Principle. Le Châtelier’s Principle. . . . if a change is imposed on a system at equilibrium, the position of the equilibrium will shift in a direction that tends to reduce that change. Effects of Changes on the System.

jaime-willis
Download Presentation

LeChatlier’s Principle

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. LeChatlier’s Principle

  2. Le Châtelier’s Principle • . . . if a change is imposed on a system at equilibrium, the position of the equilibrium will shift in a direction that tends to reduce that change.

  3. Effects of Changes on the System • 1.Concentration: The system will shift away from the added component. • 2. Temperature: K will change depending upon the temperature .

  4. Effects of Changes on the System (continued) • 3. Pressure: • a. Addition of inert gas does not affectthe equilibrium position. • b.Decreasing the volume shifts the equilibrium toward the side with fewer moles of gases.

  5. Predict the “shift” for each type of disturbance to the equilibrium 2NOBr(g) 2NO(g) + Br2(g) Kp=0.16 at 25°C ΔH = +16.3kJ • Adding more Br2(g) • Removing some NOBr(g) • Decreasing the temperature • Increasing the container volume

  6. 2NO2 (g) ↔ N2O4 (g) ΔH = -58.0 kJPredict the effect of each of the following changes on this system atequilibrium (drive forward reaction, drive reverse reaction, no effect).a) add N2O4b) remove NO2c) increase the volume d) decrease the temperaturee) Add N2

More Related