**Calculating an Equilibrium Constant from a Heterogeneous Reaction**Iron and water react to form iron(III) oxide and hydrogen, as described by the following chemical equation:\[ 2 \text{Fe(s)} + 3 \text{H}_2\text{O(g)} \rightarrow \text{Fe}_2\text{O}_3\text{(s)} + 3 \text{H}_2\text{(g)} \]At a specific temperature, a chemist observes that an 8.1 L reaction vessel containing a mixture of iron, water, iron(III) oxide, and hydrogen at equilibrium exhibits the following composition:| Compound | Amount ||----------|--------|| Fe | 3.36 g || H₂O | 1.29 g || Fe₂O₃ | 2.99 g || H₂ | 4.17 g |Calculate the equilibrium constant $ K_c $ for this reaction. Round your answer to two significant digits.\[ K_c = \text{[Box for the answer]} \]There is an interactive check box to verify the answer.

Answered: Iron and water react to form iron (III)…

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

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**Calculating an Equilibrium Constant from a Heterogeneous Reaction**

Iron and water react to form iron(III) oxide and hydrogen, as described by the following chemical equation:

\[ 2 \text{Fe(s)} + 3 \text{H}_2\text{O(g)} \rightarrow \text{Fe}_2\text{O}_3\text{(s)} + 3 \text{H}_2\text{(g)} \]

At a specific temperature, a chemist observes that an 8.1 L reaction vessel containing a mixture of iron, water, iron(III) oxide, and hydrogen at equilibrium exhibits the following composition:

| Compound | Amount |
|----------|--------|
| Fe | 3.36 g |
| H₂O | 1.29 g |
| Fe₂O₃ | 2.99 g |
| H₂ | 4.17 g |

Calculate the equilibrium constant $ K_c $ for this reaction. Round your answer to two significant digits.

\[ K_c = \text{[Box for the answer]} \]

There is an interactive check box to verify the answer.

Expert Solution

Step 1: Given information:

$2 Fe left parenthesis straight s right parenthesis space plus space 3 straight H subscript 2 straight O left parenthesis straight g right parenthesis space rightwards harpoon over leftwards harpoon Fe subscript 2 straight O subscript 3 left parenthesis straight s right parenthesis space plus space 3 straight H subscript 2 left parenthesis straight g right parenthesis space$

The equilibrium constant of the reaction = ?

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