Gas Laws Flashcards
Ideal Gas Equation
PV = nRT
P
pressure
V
volume
n
number of moles
R
ideal gas constant
T
temperature
ideal gas constant
0.08206 L atm/mol K
Molar Volume
1 mol gas (STP) = 22.4 L gas
STP: T = 273.15K, P=1 atm
Anglo-Irish natural philosopher, chemist, physicist and inventor
first modern chemist
1661 - the sceptical chymist
Robert Boyle
Boyle’s Law
pressure is inversely proportional to volume
temperature must be constant
more mercury (pressure), less _____
volume
for a given mass of any gas and with the temperature held constant, the volume of the gas varies inversely with pressure
Boyle’s Law
Boyle’s Law Equation
P1V1 = P2V2
french inventor, scientist, mathematician and balloonist (geometer)
jacques alexandre cesar charles
Charles’ Law
describes how gases tend to expand when it is heated
also known as Gay-Lusaac’s Law
Charles’ Law Equation
V1/T1 = V2/T2
constant pressure
pressure - temperature (constant volume)
P proportional to T (V, constant)
Gay-Lusaac’s Law
Gay Lusaac’s Law Equation
P1/T1=P2/T2
Avogadro’s Law
At constant temperature and pressure, the volume of a gas is directly proportional to the umber of moles of the gas present.
Avogadro’s Law Equation
V1/n1=V2/N2
Combined Gas Equation
P1V1/T1=P2V2/T2