1. A system, comprising: a computer system comprising at least one processor; a thermodynamic state solver application that, when executed by the at least one processor, computes a flash equilibrium state solution for each of a plurality of nodes in a thermodynamic network and determines for each of the plurality of nodes at least two sensitivities of a first thermodynamic property with reference to at least a second thermodynamic property and a third thermodynamic property, wherein a first sensitivity of the first thermodynamic property with reference to the second thermodynamic property is determined to be more significant than a second sensitivity of the first thermodynamic property with reference to the third thermodynamic property; and a thermodynamic system solver application that, when executed by the at least one processor, computes a thermodynamic state solution of the thermodynamic network based at least in part on an estimate of a thermodynamic property determined based on at least one of the sensitivities, wherein the estimate of the thermodynamic property determined based on the at least one of the sensitivities is computed by omitting consideration of the second sensitivity and the thermodynamic system solver application computes the thermodynamic system solution of the thermodynamic network based at least in part on the estimate, and wherein the system processes the thermodynamic state solution to execute at least one of controlling a thermodynamic process control component or controlling a chemical process control component.