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Water Can Decompose at an Elevated Temperature to Give Hydrogen

Question 66

Multiple Choice

Water can decompose at an elevated temperature to give hydrogen and oxygen according to the equation below. At a particular temperature in a vessel containing water vapor and air, the partial pressures of H2O, H2, and O2 are 0.055 atm, 0.0065 atm, and 0.19 atm, respectively. What is the value of the reaction quotient, QP, for this reaction under these conditions? 2H2O(g) Water can decompose at an elevated temperature to give hydrogen and oxygen according to the equation below. At a particular temperature in a vessel containing water vapor and air, the partial pressures of H<sub>2</sub>O, H<sub>2</sub>, and O<sub>2</sub> are 0.055 atm, 0.0065 atm, and 0.19 atm, respectively. What is the value of the reaction quotient, Q<sub>P</sub>, for this reaction under these conditions? 2H<sub>2</sub>O(g) 2H<sub>2</sub>(g) <font face= symbol ></font> O<sub>2</sub>(g) A) 0.023 B) 1.5 <font face= symbol ></font> 10<font face= symbol ><sup></sup></font><sup>4</sup> C) 2.7 <font face= symbol ></font> 10<font face= symbol ><sup></sup></font><sup>3</sup> D) 370 E) 4.4 <font face= symbol ></font> 10<sup>4</sup> 2H2(g) O2(g)


A) 0.023
B) 1.5 104
C) 2.7 103
D) 370
E) 4.4 104

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