How does the ideal gas law differ from the combined gas law?
The equation for the ideal gas law is PV/T = k
P represents pressure, V represents volume, T temperature in kelvin
k is a constant.
The ideal gas PV= nRT
Where P,V,T represent the same variables as in the combined gas law. The new variable, represents the number of moles.
R is the universal gas constant which is
0.0821 (Liters x atmospheres/mol x Kelvin).
You can rewrite equation as PV/nT =R