Le Chatelier's Principle Worksheet

 

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  1. What is Le Châtelier’s Principle?     

    2.  

  2. How can you cause changes in the following?  How does a change in them affect equilibrium?

      3.  

    • Concentration

    • Pressure

    • Temperature

     

     

  3. Why does a change in pressure caused by volume change result in a shift but not a pressure change cause by an inert gas addition?

    4.  

  4. Consider:

    2 NBr3 (s)     N2 (g) + 3 Br2 (g)

    How would the reaction shift if….

      5.  

    • The concentration of N2 is decreased?

      •  

    • The concentration of Br2 is increased?

      •  

    • The amount of NBr3 is doubled?

    • The pressure is decreased by changing the volume?

      •  

    • The pressure is increased by adding He(g)?

     

     

  5. Consider:

    aA + bB     cC + dD

    Determine if the above reaction is endothermic or exothermic based on the following information:

    TEMPERATURE                    K
    150 K                                     0.0053
    500 K                                     12
    2000K                                    65


 

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