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:
The partial pressure exerted by water vapor at
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.
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.
Answer to Problem 1PS
The partial pressure exerted by water vapor at
Explanation of Solution
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
This pressure partial pressure can be achieved if the temperature value reaches above
The partial pressure exerted by water vapor at
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Chapter 20 Solutions
Chemistry & Chemical Reactivity
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