12.1 / 12.2 - Physical States and Phase Changes

What are intramolecular / bonding forces?

forces found within a molecule, responsible for chemical behavior

What are intermolecular / nonbonding forces?

forces found between molecules, responsible for the physical behavior

what are the two equations for phase change questions

q = mc(deltaT)

q = deltaH * n

When to use
q = mc(deltaT)

when no phase change is occuring, only temp is changing.

when to use
q = deltaH * n

when a phase change in occuring, temp is not changing

what is vapor pressure

in a closed container, when the gas in the container puts pressure on the liquid which make its difficult for the liquid to vaporize

when temp increases, vapor pressure ___.

increases

the weakerthe intermolecular forcers, the more difficult/easier it is for particles to enter the vapor phase and the higher/lower the p.

easier, higher

what is the clausius clapeyron equation you use when only 1 temperature is provided in the question

what is the clausius clapeyron equation you use when only 2 temperatures OR 2 pressures are provided in the question

the temperatures for the clausius clapeyron equations must be converted to ___.

Kelvin

what is a critical point

where liquid and gas do not exist as distinct phases