The equilibrium constant, kp, equals 3.40 at 25°c for the isomerization reaction: cis-2-butene ⇌ trans-2-butene. if a flask initially contains 1.00 atm of each gas, in what direction will the system shift to reach equilibrium?

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31-07-2017
Chemistry

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The equilibrium constant, kp, equals 3.40 at 25°c for the isomerization reaction: cis-2-butene ⇌ trans-2-butene. if a flask initially contains 1.00 atm of each gas, in what direction will the system shift to reach equilibrium?

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jaquan13927 jaquan13927 · Answer 1 · 2017-07-31T16:09:33+02:00

jaquan13927 jaquan13927

31-07-2017

1.00 atm of each gas, in what direction will the system shift to reach equilibrium

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dsdrajlin dsdrajlin · Answer 2 · 2019-12-19T02:41:37+01:00

Answer:

The reaction will proceed to the right (favoring the products).

Explanation:

Let's consider the following isomerization reaction.

cis-2-butene ⇌ trans-2-butene

To predict in what direction will shift to reach equilibrium, we have to calculate the reaction quotient (Qp).

[tex]Qp=\frac{p(trans-2-butene)}{p(cis-2-butene)} =\frac{1.00}{1.00} =1.00[/tex]

Since Qp (1.00) < Kp (3.40), the reaction will proceed to the right, so that the pressure of the product increases, the pressure of the reactant decreases, and Qp reaches the value of Kp.