---
title: "A student models a high-temperature gas-processing system using a rigid container maintained at constant temperature. The gases react according to the equation  \\(2\\text{SO}_3\\text{(g)} \\rightleftharpoons 2\\text{SO}_2\\text{(g)} + \\text{O}_2\\text{(g)}\\)  Before appreciable reaction occurs, the partial pressures are \\(0.80\\text{ atm}\\) for \\(\\text{SO}_3\\text{(g)}\\), \\(0.10\\text{ atm}\\) for \\(\\text{O}_2\\text{(g)}\\), and \\(0\\text{ atm}\\) for \\(\\text{SO}_2\\text{(g)}\\). At equilibrium, the total pressure in the container is \\(1.10\\text{ atm}\\). What is the equilibrium partial pressure of \\(\\text{SO}_2\\text{(g)}\\)?"
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url: "https://nerd-notes.com/ubq/119388/"
date_modified: "2026-08-19T12:40:05+00:00"
---

# A student models a high-temperature gas-processing system using a rigid container maintained at constant temperature. The gases react according to the equation

\(2\text{SO}_3\text{(g)} \rightleftharpoons 2\text{SO}_2\text{(g)} + \text{O}_2\text{(g)}\)

Before appreciable reaction occurs, the partial pressures are \(0.80\text{ atm}\) for \(\text{SO}_3\text{(g)}\), \(0.10\text{ atm}\) for \(\text{O}_2\text{(g)}\), and \(0\text{ atm}\) for \(\text{SO}_2\text{(g)}\). At equilibrium, the total pressure in the container is \(1.10\text{ atm}\). What is the equilibrium partial pressure of \(\text{SO}_2\text{(g)}\)?

A student models a high-temperature gas-processing system using a rigid container maintained at constant temperature. The gases react according to the equation

\(2\text{SO}_3\text{(g)} \rightleftharpoons 2\text{SO}_2\text{(g)} + \text{O}_2\text{(g)}\)

Before appreciable reaction occurs, the partial pressures are \(0.80\text{ atm}\) for \(\text{SO}_3\text{(g)}\), \(0.10\text{ atm}\) for \(\text{O}_2\text{(g)}\), and \(0\text{ atm}\) for \(\text{SO}_2\text{(g)}\). At equilibrium, the total pressure in the container is \(1.10\text{ atm}\). What is the equilibrium partial pressure of \(\text{SO}_2\text{(g)}\)?

- **A.** \(0.10\text{ atm}\)
- **B.** \(0.20\text{ atm}\)
- **C.** \(0.30\text{ atm}\)
- **D.** \(0.40\text{ atm}\)

*The answer key and step-by-step explanation are available to logged-in users at https://nerd-notes.com/ubq/119388/*