SABIC CHEM 101 Chapter 5 - Part 5

SABIC CHEM 101 Chapter 5 - Part 5 - Par$alPressures How do...

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Par$al Pressures P Total = P 1 + P 2 + P 3 + . . . Dalton’s Law of Partial Pressures: For a mixture of gases, the total pressure exerted is the sum of the pressures that each gas would exert if it were alone: P total = P O2 + P N2 How do we deal with gases composed of a mixture of two or more different substances?
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Par$al Pressures P Total = P 1 + P 2 + . . . If each of the gases behaves independently of the others then we can apply the ideal gas law to each gas component in the sample: And so on for all components. Therefore, the total pressure P t will be equal to:
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Par$al Pressures All components will share the same temperature, T , and volume V , therefore, the total pressure P t will be: Since the sum of the number of moles of each component gas equals the total number of moles of gas molecules in the sample: At constant temperature and volume, the total pressure of a gas sample is determined by the total number of moles of gas present, whether this represents a single substance, or a mixture
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SABIC CHEM 101 Chapter 5 - Part 5 - Par$alPressures How do...

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