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Chemistry

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At T = 25 degrees Celsius, the reaction No2 <-> 2NO +O2 has an equilibrium constant K=5.0*10^-13. Suppose the container is filled with NO2 at an initial pressure of 0.25 atm. Calculate the partial pressure of NO at equilibrium

  • Chemistry - ,

    I assume that K listed is Kp and not Kc. Note that your equation is not balanced.
    ........2NO2 --> 2NO + O2
    I.......0.25......0.....0
    C........-2x......2x.....x
    E.......0.25-2x....2x......x

    Kp = pNO^2*pO2/pNO2^2
    Substitute and solve for x and 2x

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