🤓 Based on our data, we think this question is relevant for Professor Studer's class at South Texas College.

**N _{2}O_{4}(g) ⇌ 2NO_{2}(g) K_{p} = 0.25**

**Step 1:**** **Construct an ICE chart for the equilibrium reaction.

**Step 2: **Calculate the change (x) in the reaction using the equilibrium constant.

**N _{2}O_{4}(g) ⇌ 2NO_{2}(g) K_{p} = 0.25**

$\overline{){\mathbf{K}}{\mathbf{=}}\frac{\mathbf{products}}{\mathbf{reactants}}}\phantom{\rule{0ex}{0ex}}\mathbf{K}\mathbf{=}\frac{{\mathbf{\left[}{\mathbf{NO}}_{\mathbf{2}}\mathbf{\right]}}^{\mathbf{2}}}{\mathbf{\left[}{\mathbf{N}}_{\mathbf{2}}{\mathbf{O}}_{\mathbf{4}}\mathbf{\right]}}\phantom{\rule{0ex}{0ex}}\mathbf{0}\mathbf{.}\mathbf{25}\mathbf{=}\frac{{\mathbf{(}\mathbf{9}\mathbf{.}\mathbf{0}\mathbf{-}\mathbf{2}\mathbf{x}\mathbf{)}}^{\mathbf{2}}}{\mathbf{x}}\phantom{\rule{0ex}{0ex}}\mathbf{0}\mathbf{.}\mathbf{25}\mathbf{x}\mathbf{=}\mathbf{81}\mathbf{-}\mathbf{36}\mathbf{x}\mathbf{+}\mathbf{4}{\mathbf{x}}^{\mathbf{2}}\phantom{\rule{0ex}{0ex}}\overline{)\mathbf{0}\mathbf{=}\mathbf{4}{\mathbf{x}}^{\mathbf{2}}\mathbf{-}\mathbf{36}\mathbf{.}\mathbf{25}\mathbf{x}\mathbf{+}\mathbf{81}}$

Now, we will use the ** quadratic formula** to solve for x. The quadratic formula is:

At a particular temperature, *K*_{p} = 0.25 for the reaction

N_{2}O_{4}(*g*) ⇌ 2NO_{2}(*g*)

b. A flask containing only NO_{2} at an initial pressure of 9.0 atm is allowed to reach equilibrium. Calculate the equilibrium partial pressures of the gases.

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What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the ICE Chart concept. You can view video lessons to learn ICE Chart. Or if you need more ICE Chart practice, you can also practice ICE Chart practice problems.

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Based on our data, we think this problem is relevant for Professor Studer's class at South Texas College.

What textbook is this problem found in?

Our data indicates that this problem or a close variation was asked in Chemistry: An Atoms First Approach - Zumdahl 2nd Edition. You can also practice Chemistry: An Atoms First Approach - Zumdahl 2nd Edition practice problems.