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A gaseous mixture contains 0.30 mole of co(g), 0.10 mole of H2(g) AND an Unknown amount of CH4(g) in a litre flask. this mixture is in equilibrium at 1200 deg K acc to

CO(g) + 3H2(g) <-----> CH4(g) + H2O(g)
what is the concentration of CH4(g) in the mixture if Kc = 3.92.

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