Chem Ch.9

Once equilibrium is reached between a vapor and a liquid, what does this mean for the pressure exerted by the vapor over the liquid?

It remains constant
What is the pressure of vapor in equilibrium with a liquid called?

Vapor Pressure
If both liquid and vapor are present, will the pressure exerted by the vapor be dependent on the container's volume?

No
State the Clausius-Clapeyron equation

ln(P₂/ P₁) = (deltaH_vap / R)*[(1/T₁) - (1/T₂)]
Scientifically; when does a liquid boil?

When it reaches a temperature where its internal vapor pressure is equal to the pressure above its surface.
What is the critical temperature?

This is the temperature value above which the liquid phase of a substance cannot exist
What is critical pressure?

This is simply the vapor pressure of a liquid at its critical temperature.
What is a supercritical fluid?

This a substance above its critical temperature and pressure.
What is the triple point of a substance?

This is the temperature and pressure at which all three phases of a substance are in equilibrium.
What is sublimation?

The process by which a solid changes directly to a vapor.
At what temperatures can a solid sublime?

Only temperatures below the substance's triple point.

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ballinbc14

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Card Set

Chem Ch.9

Description

Chemistry Chapter 9 on states of substances and intermolecular forces

Updated

2010-12-13T23:32:42Z