The Equilibrium Constant, K_p, Equals 3

question 97

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 bar of cis-2-butene and 0. 165 bar of trans-2-butene, what is the equilibrium pressure of each gas?

• A) P(cis-2-butene) = 0.0 485 bar and P(trans-2-butene) = 0. 165 bar
• B) P(cis-2-butene) = 0.0 458 bar and P(trans-2-butene) = 0. 156 bar
• C) P(cis-2-butene) = 0.0 735 bar and P(trans-2-butene) = 0.250 bar
• D) P(cis-2-butene) = 0. 0943 bar and P(trans-2-butene) = 0. 321 bar

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