Question

Which of the following factors influences the vapor pressure of a pure liquid? a. the volume of liquid present in a container b. the temperature of the liquid c. the surface area of the liquid

Name: Problem 64, Chapter 10: Chemistry The Science in Context
Uploaded: 2020-04-29T22:18:26-08:00
Duration: 1 min 36 s
Channel: David Collins
Description: Which of the following factors influences the vapor pressure of a pure liquid? a. the volume of liquid present in a container b. the temperature of the liquid c. the surface area of the liquid

   Which of the following factors influences the vapor pressure of a pure liquid?
a. the volume of liquid present in a container
b. the temperature of the liquid
c. the surface area of the liquid

Chemistry The Science in Context

Thomas R. Gilbert 5th Edition

Chapter 10, Problem 64

Instant Answer

Solved by Expert David Collins

04/29/2020

Step 1

Vapor pressure is the pressure exerted by a vapor in thermodynamic equilibrium with its condensed phases at a given temperature in a closed system. It is a measure of the tendency of molecules and atoms to escape from a liquid or a solid. Show more…

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Which of the following factors influences the vapor pressure of a pure liquid? a. the volume of liquid present in a container b. the temperature of the liquid c. the surface area of the liquid

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Key Concepts

Temperature Dependence

Temperature plays a critical role in determining vapor pressure because it influences the kinetic energy of the liquid's molecules. As the temperature increases, more molecules have enough energy to escape the liquid phase into the vapor phase, thus increasing the vapor pressure.

Intensive Properties and System Geometry

Vapor pressure is an intensive property and does not depend on the amount of liquid present or the surface area of the liquid exposed to the air. This means that factors like the volume of the liquid in the container or the container's surface area do not influence the equilibrium vapor pressure.

Equilibrium Vapor Pressure

This is the pressure exerted by the vapor when a liquid and its vapor phase are in dynamic equilibrium within a closed system. At this point, the rate of evaporation equals the rate of condensation, and the vapor pressure becomes a characteristic property of the liquid at a given temperature.

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