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Chemical Equilibrium

  1. Mar 30, 2008 #1
    Hi, I have 3 questions i cant seem to solve anyways thanks in advance.

    1) If the equilbrium constant at a cetain temperature is 24 for the reaction, 2NO(g) <-> N2(g) + 02(g). Both of the systems listed below cannon be in equilbrium because at this temperature because there is only one value of Kc.

    [NO] = System 1 - System 2
    1.06 1.56

    Since the equilbrium constant does not have units it doesnt matter which unit we use for concentration when calculating Kc.

    2a) At T1, K=0.013
    At T2, K = 083

    If 1.00 mole of A is placed in a 1.00L reaction vessel, at which temperature will the amount of B at equilbfrium be higher? Explain your answer.

    2b) If delta H < 0, which temperature is higher? T1 or T2? Explain your answer.

    3) Use the information below to calculate Kc for the follwing reactiosn at 600 decrees celcius

    C02(g) + H2(g) <-> CO(g) + H2O(g)

    A gas mixture that consits of equal amounts of Co and H20 was injected into a 1.97 rigid walled container at 600 degreees ceclius until the pressure reached 7.25 atm. When the reaction reaced equilbirum, 0.024 mole Of CO were present.

    Thx much.
  2. jcsd
  3. Mar 30, 2008 #2
    So...what have you tried so far?
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