Equilibrium
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Equilibrium. 5/22/14 THE Isaiah Stubbs (GREATNESS) aka ZEH Irmak, Lindsay, Lily, Elijah, Muhammad, Pooja, & Romario. Chemical Equilibrium. Chemical equilibrium - the state in which forward and reverse reactions balance each other when they occur in equal rates

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Equilibrium

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Equilibrium

Equilibrium

5/22/14

THE Isaiah Stubbs (GREATNESS) aka ZEH

Irmak, Lindsay, Lily, Elijah, Muhammad, Pooja, & Romario


Chemical equilibrium

Chemical Equilibrium

  • Chemical equilibrium- the state in which forward and reverse reactions balance each other when they occur in equal rates

  • Le Chatelier’s Principle- states that if a stress is applied to a system at equilibrium, the system shifts in the direction that relieves the stress


Stresses

Stresses

  • Three stresses of a chemical system:

    • Temperature change

    • Pressure change

    • Concentration of products and reactants

      • If a concentration of a substance is increased, equilibrium will shift to the opposite side.

      • If a concentration of a substance is decreased, equilibrium will shift to that side


Equilibrium constant

Equilibrium Constant

Keq= (C) / (A) (B)

Keq>1 = more products than reactants

Keq<1 = more reactants than products

Can only be gas or aqueous, can’t be a solid!

c

a

b


Temperature

Temperature

Ex: N2+ 3H2 2NH3 +(Heat)

- If you increase temperature, there will be more reactants produced.


Concentration

Concentration

N2 + 3H2 2NH3

  • If you add more N2 or H2 you get more products:

    • N2+N2+ 3H22NH3

  • If you remove N2 or H2 you get more reactants:

    • 3H 2NH3


Pressure

Pressure

  • Only applies to gases and aqueous solutions

  • To calculate moles of each side, add the coefficients on the reactants side together, and the coefficients on the products side together

  • If you increase pressure on the side with more moles, equilibrium will shift to the other side


We alright

We Alright

Multi BMF, ZEH, Leo Mosley, yungprohpet

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