
(a)
Interpretation: The vapor pressure of solution needs to be determined.
Concept Introduction : For volatile components, Raoult’s law is modified as,
Here, A, B are different components in the solution.
(b)
Interpretation: The mole fraction of pentane in the vapor that is in equilibrium with the solution needs to be determined.
Concept Introduction : Vapor pressure is the pressure exerted by a vapor in the state of equilibrium in a system which is closed.
Surface area, intermolecular forces and temperature are some factors that has a marked influence in vapor pressure. The vapor pressure of a molecule varies with temperatures

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Chapter 17 Solutions
Chemical Principles
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