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Idea gas law formula:
   PV = nRT
Where:
   P: pressure, in Pascal (Pa)
   V: Volume, in m³
   n: Amount, Number of moles
   R: Gas constant, 8.314472 J.K^-1.mol^-1 ( 1 J = 1 Pa.m³ )
   T: Temperatur, in celcus