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At 1300K, 0.3 mol of CO ,0.1 mol H2, 0.0...

At 1300K, 0.3 mol of CO ,0.1 mol `H_2`, 0.02 mol of `H_2O` and an unknown amount of `CH_4` are present at equilibrium in a vessel. `K_c` for the reaction `CO_(g)+H_2(g) leftrightarrow CH_4(g)+H_2O(g)` is 3.9. What is the equilibrium concentration `CH_4`

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`0.0585 mol`
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