Water Can Decompose at an Elevated Temperature to Give Hydrogen

question 50

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) 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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