---
title: "Propane, \\(\\text{C}_3\\text{H}_8(g)\\), undergoes complete combustion according to the following thermochemical equation:  \\[\\text{C}_3\\text{H}_8(g) + 5\\text{O}_2(g) \\rightarrow 3\\text{CO}_2(g) + 4\\text{H}_2\\text{O}(l) \\quad \\Delta H^\\circ_{rxn} = -2200 \\text{ kJ/mol}_{rxn}\\]  What amount of heat is released when a \\(4.40 \\text{ g}\\) sample of \\(\\text{C}_3\\text{H}_8(g)\\) (molar mass \\(44.0 \\text{ g/mol}\\)) is completely burned in excess oxygen?"
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url: "https://nerd-notes.com/ubq/119214/"
date_modified: "2026-08-19T12:39:23+00:00"
---

# Propane, \(\text{C}_3\text{H}_8(g)\), undergoes complete combustion according to the following thermochemical equation:

\[\text{C}_3\text{H}_8(g) + 5\text{O}_2(g) \rightarrow 3\text{CO}_2(g) + 4\text{H}_2\text{O}(l) \quad \Delta H^\circ_{rxn} = -2200 \text{ kJ/mol}_{rxn}\]

What amount of heat is released when a \(4.40 \text{ g}\) sample of \(\text{C}_3\text{H}_8(g)\) (molar mass \(44.0 \text{ g/mol}\)) is completely burned in excess oxygen?

Propane, \(\text{C}_3\text{H}_8(g)\), undergoes complete combustion according to the following thermochemical equation:

\[\text{C}_3\text{H}_8(g) + 5\text{O}_2(g) \rightarrow 3\text{CO}_2(g) + 4\text{H}_2\text{O}(l) \quad \Delta H^\circ_{rxn} = -2200 \text{ kJ/mol}_{rxn}\]

What amount of heat is released when a \(4.40 \text{ g}\) sample of \(\text{C}_3\text{H}_8(g)\) (molar mass \(44.0 \text{ g/mol}\)) is completely burned in excess oxygen?

- **A.** \(22.0 \text{ kJ}\)
- **B.** \(110 \text{ kJ}\)
- **C.** \(220 \text{ kJ}\)
- **D.** \(9680 \text{ kJ}\)

*The answer key and step-by-step explanation are available to logged-in users at https://nerd-notes.com/ubq/119214/*