What Is the Vapor Pressure of an Aqueous Solution That

question 28

Multiple Choice

What is the vapor pressure of an aqueous solution that has a solute mol fraction of = 0.100? The vapor pressure of water is 25.756 mm Hg at 25°C.

• A) 23.2 mm Hg
• B) 2.58 mm Hg
• C) 25.8 mm Hg
• D) 0.900 mm Hg
• E) 22.3 mm Hg

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Definitions:

Enthalpy Reaction

A thermodynamic quantity equivalent to the total heat content of a system, representing the sum of its internal energy and the product of its pressure and volume, especially useful in the study of heat exchange in chemical reactions.

Electrochemical Reaction

A chemical reaction that involves the transfer of electrons from one species to another, often associated with electricity.

Exergonic

Describing a chemical reaction that releases energy to its surroundings, typically in the form of heat or work.

Endergonic

Endergonic refers to a chemical reaction where energy is absorbed from the surroundings, generally requiring an input of energy to proceed.