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Equilibrium concentration for the reaction

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the equilibrium constant for the reaction

N2O4(g) <=======> 2NO2(g)

is Kc = 4.66 x 10 -3 at 298K. Calculate the following when 0.800mol of N2O4(g) is injected into a closed 1.00L container.

a). The concentration of each gas once equilibrium is reached.
b). The new equilibrium concentrations if the volume is suddenly halved (still at 298K)

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Solution Preview

N2O4 -----> 2NO2
Initial 0.8 0
change -x +2x
Final 0.8-x 2x

Kc = 0.00466 = [NO2]^2 ...

Solution Summary

Concentrations are calculated using the equilibrium constant.