# Topic 6

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• Created by: Jemma1494
• Created on: 03-06-21 12:22
La chateliers principle
Equilibrium of a reversible reaction will shift to resolve change if disturbed
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What effect does increasing pressure have on equilibrium
Equilibrium shifts towards the fewer gas molecules
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What effect does increasing the concentration of a reactant have on equilibrium
Equilibrium shifts towards the products
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What effect does increasing temperature have on equilibrium
Equilibrium sifts towards the endothermic direction
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What effect does adding a catalyst have on equilibrium
Equilibrium isn’t effected by a catalyst
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ICE box
Initial number of moles
Change in number of moles
Equilibrium number of moles
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Kc constant
If 3A + B ⇌ C + 2D

Kc = (C)(D)^2/(A)^3(B)

Unit comes for the number of moldm-3 in the equation
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How does changing the temperature in an exothermic reaction effect Kc value
Increases Kc value if temperature decreases

Decreases Kc value if temperature increases
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How does changing the temperature in an endothermic reaction effect Kc value
Increased Kc value if temperature is increased

Decreased Kc value if temperature is decreases
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Ammonia production
Compromised conditions to have the best yield from equilibrium position without being too expensive

20000kpa
380-450 °c
Catalyst
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Reversible reaction
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Equilibrium
Both directions of a reaction occur at the same rate
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## Other cards in this set

### Card 2

#### Front

What effect does increasing pressure have on equilibrium

#### Back

Equilibrium shifts towards the fewer gas molecules

### Card 3

#### Front

What effect does increasing the concentration of a reactant have on equilibrium

### Card 4

#### Front

What effect does increasing temperature have on equilibrium

### Card 5

#### Front

What effect does adding a catalyst have on equilibrium