What Is the Equilibrium Partial Pressure of Water Vapor Above

question 7

Multiple Choice

What is the equilibrium partial pressure of water vapor above a mixture of 37.5 g H₂O and 62.5 g HOCH₂CH₂OH at 55 °C.The partial pressure of pure water at 55.0 °C is 118.0 mm Hg.Assume ideal behavior for the solution.

• A) 3.54 mm Hg
• B) 31.7 mm Hg
• C) 38.5 mm Hg
• D) 79.5 mm Hg
• E) 175 mm Hg

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Definitions:

Standard Deviation

A statistical measure of the dispersion or variation in a set of numbers, indicating how much the individual numbers in a dataset differ from the mean or average.

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Grade Point Average, a standard way of measuring academic achievement in the U.S., calculated by dividing the total amount of grade points earned by the total amount of credit hours attempted.

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