The State Postulate
“What is the minimum amount of properties do we need to specify a thermodynamic system?”
In Thermodynamics, systems need to be specified by properties. But what is the minimum amount of properties do we need to specify a thermodynamic system? Well, after many hard years of research, Thermodynamicists have developed something known as the state postulate. With the State Postulate only two independent intrinsic variables are needed to specify a system. Once we have these variables, everything else can be derived through relationships.