Determining system equilibrium a one-litre cylinder at 458c, Ask an Expert

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Determining System Equilibrium
For the reaction

2HI(g) <=====> H2(g) + I 2(g)

at 458'C, Kc is 2.59 x 10 -2

A one-litre cylinder at 458'C is found to contain 0.36 moles of HI (g), 0.15 moles of I 2(g), and 0.18 moles of H2(g). Is this system at equilibrium?

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