---
title: "Sulfur trioxide, \\(\\text{SO}_3(g)\\), is produced by the catalytic oxidation of sulfur dioxide according to the following reversible reaction:  \\[ 2\\,\\text{SO}_2(g) + \\text{O}_2(g) \\rightleftharpoons 2\\,\\text{SO}_3(g) \\]  A rigid reaction vessel at \\(700\\text{ K}\\) is charged with a gaseous mixture where the initial partial pressures are \\(P_{\\text{SO}_2} = 0.20\\text{ atm}\\), \\(P_{\\text{O}_2} = 0.25\\text{ atm}\\), and \\(P_{\\text{SO}_3} = 0.60\\text{ atm}\\). What is the value of the reaction quotient, \\(Q_p\\), for this initial mixture?"
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url: "https://nerd-notes.com/ubq/120296/"
date_modified: "2026-08-23T04:04:22+00:00"
---

# Sulfur trioxide, \(\text{SO}_3(g)\), is produced by the catalytic oxidation of sulfur dioxide according to the following reversible reaction:

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

A rigid reaction vessel at \(700\text{ K}\) is charged with a gaseous mixture where the initial partial pressures are \(P_{\text{SO}_2} = 0.20\text{ atm}\), \(P_{\text{O}_2} = 0.25\text{ atm}\), and \(P_{\text{SO}_3} = 0.60\text{ atm}\). What is the value of the reaction quotient, \(Q_p\), for this initial mixture?

Sulfur trioxide, \(\text{SO}_3(g)\), is produced by the catalytic oxidation of sulfur dioxide according to the following reversible reaction:

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

A rigid reaction vessel at \(700\text{ K}\) is charged with a gaseous mixture where the initial partial pressures are \(P_{\text{SO}_2} = 0.20\text{ atm}\), \(P_{\text{O}_2} = 0.25\text{ atm}\), and \(P_{\text{SO}_3} = 0.60\text{ atm}\). What is the value of the reaction quotient, \(Q_p\), for this initial mixture?

- **A.** \(12\)
- **B.** \(36\)
- **C.** \(60\)
- **D.** \(144\)

*The answer key and step-by-step explanation are available to logged-in users at https://nerd-notes.com/ubq/120296/*