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Gases
chapter from my chem book.
42
Chemistry
10th Grade
06/06/2010

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Term
Gases have
Definition
mass
Term
It is easy to ______ gases
Definition
compress
Term
Gases ________ their containers _________
Definition
fill, completely
Term
Gases _______ through each other _______
Definition
diffuse (move through), rapidly.
Term
Gases exert
Definition
pressure
Term
The pressure of a gas depends on its
Definition
temperature
Term
Gases are made up of ____________ with ____
Definition
small particles with mass
Term
The distances separating particles is
Definition
relatively large
Term
The volume of gas particles is assumed to be
Definition
zero
Term
Particles are in
Definition
constant/random/rapid motion.
Term
Collisions of gas particles with each other or the walls of the container are
Definition
perfectly elastic
Term
The average kinetic energy of a gas depends only on
Definition
gas temperature
Term
The lower the ______, the lower the _________ and vice versa
Definition
temperature, energy
Term
Gas particles exert __ _____ on each other
Definition
no force.
Term
Amount of gas
Definition
n, amount in moles
Term
Volume
Definition
V, in liters
Term
Temperature
Definition
T, in Kelvins
Term
T(K) =
Definition
T(C) + 273
Term
Pressure
Definition
P, generally in atm
Term
Atmospheric pressure
Definition
the pressure exerted by the air in the atmosphere.
Term
1 atm in Pascals
Definition
101,325 Pa
Term
1 atm in mm Hg
Definition
760 mm Hg
Term
1 atm in torr
Definition
760 torr
Term
1 atm in lb/in^2
Definition
14.70 lb/in^2
Term
1 bar in Pa
Definition
100,000 Pa
Term
1 bar in atm
Definition
0.9869 atm
Term
barometer
Definition
glass tube that is sealed at one end, filled with mercury, then inverted into a reservoir of mercury.
Term
manometer
Definition
measures pressure inside a closed container.
Term
STP
Definition
Standard Temperature and Pressure: 273 K (0 C), 1 atm.
Term
Boyle's Law
Definition
The pressure and volume of a sample of gas at a constant temperature are inversely proportional to each other.
Term
Boyle's Law equation
Definition
P1V1=P2V2
Term
absolute zero
Definition
-273.15 C, 0 K
Term
Charles's Law
Definition
At a constant pressure, the volume of a fixed amount of gas is directly proportional to its absolute temperature.
Term
Charles's Law Equation
Definition
V1T2 = V2T1
Term
Avogadro's Law
Definition
Equal volumes of gases at the same temperature and pressure contain an equal number of particles.
Term
Avogadro's Law Equation
Definition
V = k3N
Term
Dalton's Law of Partial Pressures
Definition
The sum of the partial pressures of all the components in a gas mixture is equal to the total pressure of the gas mixture.
Term
Ideal Gas Equation
Definition
PV = nRT
Term
Real gas
Definition
all gases.
Term
Gas Constant
Definition
R, 0.0821 atm-L/mol-K
Term
All variables can be theoretically adjusted to give
Definition
low density.
Term
Effusion
Definition
The movement of atoms or molecules through a hole so tiny that they do not stream through but instead pass through one particle at a time.
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