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Gen Chem Chapter 7: The Gas Phase
mcat gen chem
22
Chemistry
Undergraduate 4
07/09/2009

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Term
gases are easily
Definition
compressible
Term
1 atm = ____ mm Hg
Definition
760
Term
1 atm = ___ torr
Definition
760
Term
use STP for ____ and standard conditions for ____-
Definition
gas law calculations, measuring enthalpy and stuff
Term
ideal gases:
Definition
have no intermolecular forces and occupy no volume
Term
all gases are not ideal at
Definition
high pressures and low temperatures
Term
boyle's law:
Definition
pv =pv
Term
charles law:
Definition
v/t = v/t (charles in charge was on tv!)
Term
avogadros principle
Definition
n/v = n/v
Term
ideal gas law!
Definition
pv=nrt
Term
1 mol of gas at STP...
Definition
volume of 22.4 L
Term
n =
Definition
m/MM
Term
density =
Definition
pressure * MM/ (RT)
Term
high pressure causes
Definition
intermolecular attraction and the gas takes up a smaller volume than predicted by the ideal gas law
Term
at low temp...
Definition
intermolecular forces are increased and the gas has a smaller volume than predicted by the ideal gas law
Term
a term corrects for
Definition
attractive forces between molecules
Term
b term corrects for
Definition
the fact that the gas has a volume
Term
daltons law of partial pressures
Definition
total pressure of a gaseous mixture is equal to the sum of the partial pressures of individual components
Term
kinetic molecular theory assumptions:
Definition
1. particles of negligible volume
2. no intermolecular attractions or repulsions
3. random motion
4. elastic collisions
5. all have the same KE
Term
____ molecules will have a larger value of a
Definition
polar
Term
___ molecules will have a larger value of b
Definition
big
Term
1 atm = ____ Pa
Definition
10^5
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