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Practice_Problems. LaChatlier doc

Practice_Problems. LaChatlier doc - 1 For each of the...

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1. For each of the follwoing equilibria, predict whether the system will shift in the forward or reverse  directions. Note the energy changes involved and assume that the volume remains constant. a. heat is removed from: A  B     b. heat is removed from: A + B  2 C     c. heat is added to: A + 2B  3 C     You will likely find it easier to answer the question if you first rewrite each equation by including the energy  term as part of the equation.   2. In each of the following equilibria, would you increase or decrease the temperature to force the reaction in  the forward direction? a. b.   3. For each of the equilibria in Question 2 will the value for K eq  increase or decrease if the temperature is  raised?   4. Explain the effect of using a platinum catalyst in the equilibrium reaction of ammonia with oxygen:
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4 NH 3 (g)  + 5 O 2 (g)   4 NO (g)
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