# Problem: What is the value of the equilibrium constant at 500 °C for the formation of NH3 according to the following equation?N2(g) + 3 H2(g) ⇌ 2 NH3(g)An equilibrium mixture of NH3(g), H2(g), and N2(g) at 500 °C was found to contain 1.35 M H2, 1.15 M N2, and 4.12 × 10−1 M NH3.

###### FREE Expert Solution
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###### FREE Expert Solution

We’re being asked to determine the equilibrium constant at 500˚C for this reaction:

N2(g) + 3 H2(g)  2 NH3(g)

Recall that the equilibrium constant is the ratio of the products and reactants

We use Kp when dealing with pressure and Kc when dealing with concentration:

$\overline{){{\mathbf{K}}}_{{\mathbf{p}}}{\mathbf{=}}\frac{{\mathbf{P}}_{\mathbf{products}}}{{\mathbf{P}}_{\mathbf{reactants}}}}$     $\overline{){{\mathbf{K}}}_{{\mathbf{c}}}{\mathbf{=}}\frac{\mathbf{\left[}\mathbf{products}\mathbf{\right]}}{\mathbf{\left[}\mathbf{reactants}\mathbf{\right]}}}$

Note that solid and liquid compounds are ignored in the equilibrium expression.

98% (358 ratings)
###### Problem Details

What is the value of the equilibrium constant at 500 °C for the formation of NH3 according to the following equation?

N2(g) + 3 H2(g) ⇌ 2 NH3(g)

An equilibrium mixture of NH3(g), H2(g), and N2(g) at 500 °C was found to contain 1.35 M H2, 1.15 M N2, and 4.12 × 10−1 M NH3.

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 Equilibrium Expressions concept. If you need more Equilibrium Expressions practice, you can also practice Equilibrium Expressions practice problems.

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Our tutors rated the difficulty ofWhat is the value of the equilibrium constant at 500 °C for ...as medium difficulty.

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Based on our data, we think this problem is relevant for Professor Xie's class at HOWARDCC.

What textbook is this problem found in?

Our data indicates that this problem or a close variation was asked in Chemistry - OpenStax 2015th Edition. You can also practice Chemistry - OpenStax 2015th Edition practice problems.