The Equilibrium Constant,K_p,equals 3

question 54

Multiple Choice

The equilibrium constant,K_p,equals 3.40 for the isomerization reaction: cis-2-butene ⇌ trans-2-butene.
If a flask initially contains 0.250 atm of cis-2-butene and 0.145 atm of trans-2-butene,what is the equilibrium pressure of each gas?

• A) P(cis-2-butene) = 0.0426 atm and P(trans-2-butene) = 0.145 atm
• B) P(cis-2-butene) = 0.0471 atm and P(trans-2-butene) = 0.160 atm
• C) P(cis-2-butene) = 0.0735 atm and P(trans-2-butene) = 0.250 atm
• D) P(cis-2-butene) = 0.0898 atm and P(trans-2-butene) = 0.305 atm

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