Ideal Gas Law

ideal gas
a simplified model gas where the particles do not interact
Boyle’s law
pressure (P) is inversely proportional to volume (V)
Charles’ law (and Gay-Lussac’s law)
the volume (V) of a gas is directly proportional to its absolute temperature (T)
Avogadro’s Law
states that at the same temperature and pressure, equal volumes of different gases contain an equal number of particles
ideal gas law
the “equation of state” for an ideal gas, which combines all of the empirical gas laws above
-relates the thermodynamic proper ties of an ideal gas to each other
equation for ideal gas law
“P V = n R T”, where P is pressure, V is volume, n is moles, T is absolute temperature, and R is the gas law constant (0.082 L-atm/mol•K = 8.314 J/mol•K)
gas law constant
proportionality constant for the ideal gas law

0.082 L-atm/mol•K = 8.314 J/mol•K

Dalton’ law (of partial pressures)
each gas in a mixture exerts a “partial pressure” which adds to the others to give the total pressure
equation for Dalton’ law (of partial pressures)
“Ptotal = ? Pi” where Pi = Xi Ptotal is the partial pressure of gas “i”
gas phase stoichiometry
stoichometry where one of the reactants and/or products is a gas
gas phase stoichiometry uses this instead of mass or moles
uses partial pressures instead of usual mass or mole units to describe the amount of gaseous species
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