Homework Help: Chemistry chemical equilibrium

Posted by Abdela on Saturday, February 18, 2012 at 2:50am.

1.25 mol of NOCl was placed in a 2.50 L reaction chamber at 427 celciciu degre . After equilibrium was reached, 1.1 mole of NOCl remained. Calculate the equilibrium constant Kc for the reaction

Chemistry chemical equilibrium - DrBob222, Saturday, February 18, 2012 at 4:16pm
............2NOCl ==> 2NO + Cl2
initial.....1.25.......0.....0
change.......-2x.......2x....x
equil......1.25-2x.....2x.....x

From problem, 1.25-2x =1.1 mols
Therefore, x = 0.075 mols
Convert x, 2x, and 1.25 to moles/L. M = moles/2.5L.
You now know (NO), (Cl2), and (NOCl).
Substitute into the Kc expression for NOCl and solve for Kc.
Chemistry chemical equilibrium - seid temam, Friday, April 26, 2013 at 4:34am
0.000432

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