Presentation is loading. Please wait.

Presentation is loading. Please wait.

  If stress is applied to a system the system shifts to relieve the stress Le Châtelier’s Principle.

Similar presentations


Presentation on theme: "  If stress is applied to a system the system shifts to relieve the stress Le Châtelier’s Principle."— Presentation transcript:

1

2   If stress is applied to a system the system shifts to relieve the stress Le Châtelier’s Principle

3   Mountains and mole-hills:  If stress is added the reaction must shift in the opposite direction to “remove” the mountain  If stress is removed the hole must shift in the same direction to “fill in” the hole Change in Concentration

4   Which direction will the reaction shift if the concentration of CO is increased? Change in Concentration To even out the pile it must shift right

5   Which direction will the reaction shift if the concentration of CO is decreased? Change in Concentration To even out the pile it must shift left

6   Which direction will the reaction shift if the concentration of CH 4 is increased? Change in Concentration SHIFT LEFT

7   Which direction will the reaction shift if the concentration of H 2 is decreased? Change in Concentration SHIFT LEFT

8   Which direction will the reaction shift if the concentration of H 2 O is decreased? Change in Concentration SHIFT RIGHT

9   Which direction will the reaction shift if the concentration of H 2 is increased? Change in Concentration SHIFT RIGHT

10   Remember that decreasing volume is also increasing pressure  If pressure is increased, the reaction shifts to the side with the least amount of moles Changes in Volume

11   What will happen if volume is decreased? Changes in Volume

12  The reaction shifts towards the right to relieve stress

13   Which direction will the reaction shift if the volume is decreased? Changes in Volume There would be no change because there are equal moles on each side!!!

14   Temperature changes like concentration…mountains and mole- hills Changes in Temperature

15   Which direction will the reaction shift if heat is added?  What will happen if heat is removed? Changes in Temperature

16

17   If heat is on the right side of the reaction, it is exothermic  If heat is on the left side of the reaction, it is endothermic Just a Note…

18  Review

19

20


Download ppt "  If stress is applied to a system the system shifts to relieve the stress Le Châtelier’s Principle."

Similar presentations


Ads by Google