---
title: "A student is compiling thermochemical data for a renewable-fuel study at standard conditions. Which of the following equations represents the standard enthalpy of formation, \\(\\Delta H_f^\\circ\\), of liquid ethanol, \\(\\text{C}_2\\text{H}_5\\text{OH(l)}\\)?"
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url: "https://nerd-notes.com/ubq/119316/"
date_modified: "2026-08-19T12:39:47+00:00"
---

# A student is compiling thermochemical data for a renewable-fuel study at standard conditions. Which of the following equations represents the standard enthalpy of formation, \(\Delta H_f^\circ\), of liquid ethanol, \(\text{C}_2\text{H}_5\text{OH(l)}\)?

A student is compiling thermochemical data for a renewable-fuel study at standard conditions. Which of the following equations represents the standard enthalpy of formation, \(\Delta H_f^\circ\), of liquid ethanol, \(\text{C}_2\text{H}_5\text{OH(l)}\)?

- **A.** \(2\text{C(s, graphite)}+3\text{H}_2\text{(g)}+\dfrac{1}{2}\text{O}_2\text{(g)}\rightarrow\text{C}_2\text{H}_5\text{OH(g)}\)
- **B.** \(2\text{C(s, graphite)}+3\text{H}_2\text{(g)}+\dfrac{1}{2}\text{O}_2\text{(g)}\rightarrow\text{C}_2\text{H}_5\text{OH(l)}\)
- **C.** \(\text{C}_2\text{H}_5\text{OH(l)}+3\text{O}_2\text{(g)}\rightarrow2\text{CO}_2\text{(g)}+3\text{H}_2\text{O(l)}\)
- **D.** \(4\text{C(s, graphite)}+6\text{H}_2\text{(g)}+\text{O}_2\text{(g)}\rightarrow2\text{C}_2\text{H}_5\text{OH(l)}\)

*The answer key and step-by-step explanation are available to logged-in users at https://nerd-notes.com/ubq/119316/*