   Chapter 20, Problem 3PS

Chapter
Section
Textbook Problem

In the discussion on the composition of air, mention is made of the fact that water vapor may have a concentration as high as 40,000 ppm. Calculate the partial pressure exerted by water vapor at this concentration. Assume that this represents a situation with 100% humidity. What temperature would be needed to achieve this value? (See Appendix G.)

Interpretation Introduction

Interpretation:

The partial pressure exerted by water vapor at 40,000ppm concentration and the temperature which is needed to achieve the calculated partial pressure should be determined.

Concept introduction:

• Parts per million (ppm) concentrations: It is the ratio of the number of grams of solute for every one million grams of solution.

Partspermillion(ppm) =MassofsoluteMassofsolution×106

For gases, ppm refers to numbers of particles and hence to mole fraction. And the gas pressure exerted is directly proportional to the mole fraction.

Explanation

For gases, ppm refers to numbers of particles and hence to mole fraction. And the gas pressure exerted is directly proportional to the mole fraction.

The pressure exerted by water vapor at 40,000ppm concentration is,

400001000000ofoneatmosphere0

Still sussing out bartleby?

Check out a sample textbook solution.

See a sample solution

The Solution to Your Study Problems

Bartleby provides explanations to thousands of textbook problems written by our experts, many with advanced degrees!

Get Started

What is the name of the element in Group 4A and Period 5?

General Chemistry - Standalone book (MindTap Course List)

What are the features of a healthy high-fat diet?

Understanding Nutrition (MindTap Course List)

Why is there a lower limit to the mass of a main-sequence star?

Horizons: Exploring the Universe (MindTap Course List)

How is the enzyme phosphorylase activated?

Introduction to General, Organic and Biochemistry

What impact has recombinant DNA technology had on genetics and society?

Human Heredity: Principles and Issues (MindTap Course List) 