Water Can Decompose at an Elevated Temperature to Give Hydrogen $\leftrightarrows$

question 52

Multiple Choice

Water can decompose at an elevated temperature to give hydrogen and oxygen according to the equation below. At a particular temperature, the partial pressures of H₂O, H₂, and O₂ are 0.055 atm, 0.0065 atm, and 0.0045 atm, respectively, at equilibrium. What is the value of the equilibrium constant, K_P, for this reaction at this temperature?
2H₂O(g) $\leftrightarrows$ 2H₂(g) + O₂(g)

• A) 5.3 *10^-4
• B) 3.5 *10^-6
• C) 6.3*10^-5
• D) 1.6 *10⁴
• E) 3.0 *10⁴

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