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Acetylene reacts with hydrogen in the presence of a catalyst to form ethane according to the equation C2H2(g) + 2H2(g) ? C2H6(g) The initial pressure of a mixture of C2H2 and an excess of H2 in a rigid vessel is 0.266 atm. A catalyst is introduced. After the reaction reaches completion, the temperature is restored to its initial value. The final pressure in the vessel is 0.163 atm. What was the mole fraction of C2H2 in the original mixture? XC2H2 =

          Acetylene reacts with hydrogen in the presence of a catalyst to form ethane according to the equation
C2H2(g) + 2H2(g) ? C2H6(g)
The initial pressure of a mixture of C2H2 and an excess of H2 in a rigid vessel is 0.266 atm. A catalyst is introduced. After the reaction reaches completion, the temperature is restored to its initial value. The final pressure in the vessel is 0.163 atm.
What was the mole fraction of C2H2 in the original mixture?
XC2H2 =

$Acetylene reacts with hydrogen in the presence of a catalyst to form ethane according to the equation C2H2(g) + 2H2(g) ? C2H6(g) The initial pressure of a mixture of C2H2 and an excess of H2 in a rigid vessel is 0.266 atm. A catalyst is introduced. After the reaction reaches completion, the temperature is restored to its initial value. The final pressure in the vessel is 0.163 atm. What was the mole fraction of C2H2 in the original mixture? XC2H2 =$

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