A Mixture of Xe,Kr,and Ar Has a Total Pressure of 6.69

question 171

Multiple Choice

A mixture of Xe,Kr,and Ar has a total pressure of 6.69 atm.What is the mole fraction of Kr if the partial pressures of Xe and Ar are 1.92 atm and 2.75 atm,respectively.

• A)0.302
• B)0.287
• C)0.411
• D)0.259
• E)0.698

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