Gases Flashcards
Temprature
Measured Celsius/ Kelvin
0C = 273 K
Fixed points on Celsius scale-
0C freezing point of h2o & 100*C boiling point of h2o
Gas
A substance with no well known boundaries bur will fill up any container it is placed in
Preassure
Pa (nM(-2))
Volume
M(3)
Boyels law
The volume if a fixed mass of has is INVERSLY proportional to it’s ore assure at a constant temperature
Charles law
The volume if a fixed mass if gas is DIRECTLY proportional to it’s temperature measure in KELVIN at a constant pressure
General gas law
P1V1/T1 = P2V2/T2
Avagadros law
Equal volunes of gas have the same number of molecules under the same preassure and temperature conditions
2 false rules in the kinetic theory of gasses
Molecules in a gas are independent if each other i.e. no attractive forces
The volume of all the molecules in a gas is insignificant to the space the gas is placed in
Ideal gas
A gas that follows all the rules of the kinetic theory of gasses under all temperature and pressure conditions
Equation of state
PV=nRT
P- pa. KPa—–by 1000 ——–Pa
V-m(3). Cm(3)——-divide by 10(-6)———-m(3)
T-Kelvin. *C———-+ 273———-K
When real gases cone close to being ideal gases
Low pressure - the space a gas is placed in is not relevant to volume of all the molecules in the gas
High temperature- there are less attractive forces (interactions) between molecules in a gas at higher temprature
When real gases deviate most from being ideal gases
High pressure- space gas is placed in is relevant to volume of all molecules in gas
Low temperature- there are attractive forces (stronger ineractions) between the molecules in a gas
T1 =
T2
Exp. measure mass of volatile liquid
Find mass of Al. Foil, elastic , conical flask
