What is the ideal gas law used for?

Jun 7, 2018

see below

Explanation:

You can use one of two formulation of the ideal gas law according with what you want know.
$P \times V = n \times R \times T$
where P = absolute pressure
V= volum
n = number of mol = mass (in gramms)/ molecular Mass
R is the universal costant of ideal gas = 0.082 L x Atm /(mol K) or 8,31 J /(mol K)
T = absolute temperature in K
This is usefull if you want find a parameter andyou know all the others

the second formulation is
${P}_{1} \times {V}_{1} / {T}_{1} = {P}_{2} \times {V}_{2} / {T}_{2}$
it allows to see the change of a parameter (P, V or T) if you know the others