---
title: "A student investigates the industrial synthesis of methane gas from solid carbon and hydrogen gas at high temperatures. The balanced equation for the reversible reaction is shown below.  \\(\\text{C(s)} + 2\\,\\text{H}_2\\text{(g)} \\rightleftharpoons \\text{CH}_4\\text{(g)}\\)  Which of the following is the correct expression for the equilibrium constant, \\(K_c\\), for this reaction?"
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url: "https://nerd-notes.com/ubq/119218/"
date_modified: "2026-08-19T12:39:24+00:00"
---

# A student investigates the industrial synthesis of methane gas from solid carbon and hydrogen gas at high temperatures. The balanced equation for the reversible reaction is shown below.

\(\text{C(s)} + 2\,\text{H}_2\text{(g)} \rightleftharpoons \text{CH}_4\text{(g)}\)

Which of the following is the correct expression for the equilibrium constant, \(K_c\), for this reaction?

A student investigates the industrial synthesis of methane gas from solid carbon and hydrogen gas at high temperatures. The balanced equation for the reversible reaction is shown below.

\(\text{C(s)} + 2\,\text{H}_2\text{(g)} \rightleftharpoons \text{CH}_4\text{(g)}\)

Which of the following is the correct expression for the equilibrium constant, \(K_c\), for this reaction?

- **A.** \(K_c = \dfrac{[\text{CH}_4]}{[\text{H}_2]^2}\)
- **B.** \(K_c = \dfrac{[\text{CH}_4]}{[\text{C}][\text{H}_2]^2}\)
- **C.** \(K_c = \dfrac{[\text{CH}_4]}{[\text{H}_2]}\)
- **D.** \(K_c = \dfrac{[\text{H}_2]^2}{[\text{CH}_4]}\)

*The answer key and step-by-step explanation are available to logged-in users at https://nerd-notes.com/ubq/119218/*