Coal (C) Can Be Heated with Steam (H₂O) at High $\leftrightarrows$

question 1

Multiple Choice

Coal (C) can be heated with steam (H₂O) at high temperatures to produce a mixture of hydrogen and carbon monoxide gases. Methanol, which is a useful fuel, can be produced from these gases by the reaction below. At a particular high temperature, the equilibrium concentrations are the following:
[H₂] = 0.095 mol/L, [CO] = 0.035 mol/L, [CH₃OH] = 0.065 mol/L. What is the value of the equilibrium constant, K_c, for this reaction at this temperature?
2H₂(g) + CO(g) $\leftrightarrows$ CH₃OH(g)

• A) 4.70
• B) 290
• C) 206
• D) 19.5
• E) 4.86