Temperature and Keq Lesson # 11. How Does Temperature Change the Keq? The Keq is a mathematical constant that does not change for concentration, volume,

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Presentation transcript:

Temperature and Keq Lesson # 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. 1.Exothermic Reactions: A+ B ⇋ C + energy

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

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

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

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

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.

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

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

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

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

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

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.

3.PBr 3(g) + Br 2(g) ⇋ PBr 100 o C Keq = o C Keq = Is the reaction endothermic or exothermic?

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

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