1. Temperature and Keq Lesson # 11

2. How Does Temperature Change the Keq? The Keq is a mathematical constant that does not change for concentration, volume, and pressure changes. It only changes for temperature. 1.Exothermic Reactions: A+ B ⇋ C + energy

3. How Does Temperature Change the Keq? The Keq is a mathematical constant that does not change for concentration, volume, and pressure changes. It only changes for temperature. 1.Exothermic Reactions: A+ B ⇋ C + energy Increasing the temperature causes the Keq to

4. How Does Temperature Change the Keq? The Keq is a mathematical constant that does not change for concentration, volume, and pressure changes. It only changes for temperature. 1.Exothermic Reactions: A+ B ⇋ C + energy Increasing the temperature causes the Keq to decrease. Decreasing the temperature causes the Keq to

5. How Does Temperature Change the Keq? The Keq is a mathematical constant that does not change for concentration, volume, and pressure changes. It only changes for temperature. 1.Exothermic Reactions: A+ B ⇋ C + energy Increasing the temperature causes the Keq to decrease. Decreasing the temperature causes the Keq to increase. Increasing [A] causes the reaction to shift

6. How Does Temperature Change the Keq? The Keq is a mathematical constant that does not change for concentration, volume, and pressure changes. It only changes for temperature. 1.Exothermic Reactions: A+ B ⇋ C + energy Increasing the temperature causes the Keq to decrease. Decreasing the temperature causes the Keq to increase. Increasing [A] causes the reaction to shift right and the value of the Keq to

7. How Does Temperature Change the Keq? The Keq is a mathematical constant that does not change for concentration, volume, and pressure changes. It only changes for temperature. 1.Exothermic Reactions: A+ B ⇋ C + energy Increasing the temperature causes the Keq to decrease. Decreasing the temperature causes the Keq to increase. Increasing [A] causes the reaction to shift right and the value of the Keq to remain constant.

8. How Does Temperature Change the Keq? The Keq is a mathematical constant that does not change for concentration, volume, and pressure changes. It only changes for temperature. 2.Endothermic Reactions: A+ B+ energy ⇋ C

9. How Does Temperature Change the Keq? The Keq is a mathematical constant that does not change for concentration, volume, and pressure changes. It only changes for temperature. 2.Endothermic Reactions: A+ B+ energy ⇋ C Decreasing the temperature causes the Keq to

10. How Does Temperature Change the Keq? The Keq is a mathematical constant that does not change for concentration, volume, and pressure changes. It only changes for temperature. 2.Endothermic Reactions: A+ B+ energy ⇋ C Decreasing the temperature causes the Keq to decrease. Increasing the temperature causes the Keq to

11. How Does Temperature Change the Keq? The Keq is a mathematical constant that does not change for concentration, volume, and pressure changes. It only changes for temperature. 2.Endothermic Reactions: A+ B+ energy ⇋ C Decreasing the temperature causes the Keq to decrease. Increasing the temperature causes the Keq to increase. Decreasing [A] causes the reaction to shift

12. How Does Temperature Change the Keq? The Keq is a mathematical constant that does not change for concentration, volume, and pressure changes. It only changes for temperature. 2.Endothermic Reactions: A+ B+ energy ⇋ C Decreasing the temperature causes the Keq to decrease. Increasing the temperature causes the Keq to increase. Decreasing [A] causes the reaction to shift left and the value of the Keq to

13. How Does Temperature Change the Keq? The Keq is a mathematical constant that does not change for concentration, volume, and pressure changes. It only changes for temperature. 2.Endothermic Reactions: A+ B+ energy ⇋ C Decreasing the temperature causes the Keq to decrease. Increasing the temperature causes the Keq to increase. Decreasing [A] causes the reaction to shift left and the value of the Keq to remain constant.

14. 3.PBr 3(g) + Br 2(g) ⇋ PBr 5(g) @ 100 o C Keq = 0.17 &@ 200 o C Keq = 0.091 Is the reaction endothermic or exothermic?

15. 3.PBr 3(g) + Br 2(g) ⇋ PBr 5(g) @ 100 o C Keq = 0.17 &@ 200 o C Keq = 0.091 Is the reaction endothermic or exothermic? The temperature was increased and the Keq decreased or it shifted left.

16. 3.PBr 3(g) + Br 2(g) ⇋ PBr 5(g) + energy @ 100 o C Keq = 0.17 &@ 200 o C Keq = 0.091 Is the reaction endothermic or exothermic? The temperature was increased and the Keq decreased or it shifted left. Exothermic reactions shift left when heated.