Question

A gas mixture contains each gas at the indicated partial pressure. $$ \begin{array}{ll} \mathrm{N}_{2} & 217 \text { torr } \\ \mathrm{O}_{2} & 106 \text { torr } \\ \mathrm{He} & 248 \text { torr } \end{array} $$ What is the total pressure of the mixture?

Name: Problem 73, Chapter 11: Introductory Chemistry Essentials
Uploaded: 2020-09-01T02:19:51-08:00
Duration: 1 min 15 s
Channel: Madeline Currie
Description: A gas mixture contains each gas at the indicated partial pressure. N2 217 torr O2 106 torr He 248 torr What is the total pressure of the mixture?

   A gas mixture contains each gas at the indicated partial pressure.
$$
\begin{array}{ll}
\mathrm{N}_{2} & 217 \text { torr } \\
\mathrm{O}_{2} & 106 \text { torr } \\
\mathrm{He} & 248 \text { torr }
\end{array}
$$
What is the total pressure of the mixture?

Introductory Chemistry Essentials

Tro, Nivaldo J. 5th Edition

Chapter 11, Problem 73

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Solved by Expert Madeline Currie

09/01/2020

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A gas mixture contains each gas at the indicated partial pressure. $$ \begin{array}{ll} \mathrm{N}_{2} & 217 \text { torr } \\ \mathrm{O}_{2} & 106 \text { torr } \\ \mathrm{He} & 248 \text { torr } \end{array} $$ What is the total pressure of the mixture?

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Key Concepts

Dalton's Law of Partial Pressures

Dalton's Law of Partial Pressures states that in a mixture of non-reacting gases, the total pressure exerted is equal to the sum of the partial pressures of each individual gas. This concept is fundamental in understanding gas mixtures as it allows one to calculate the total pressure by simply adding up the pressures each gas would exert if it occupied the entire volume alone.

Partial Pressure

Partial pressure refers to the pressure contributed by a single gas component in a mixture, assuming it alone occupies the entire container volume. It is a key concept in gas laws that helps in determining the behavior of individual gases within a mixture, and it is used in calculating the total pressure when combined with Dalton's Law.

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