A quantity whose value depends only on the state of the system and not its history; X is a state function if and only if the value of ()X does not depend on the path used to go from the initial to the final state of the system.
a thermodynamic quantity which is determined solely by the conditions, not the method of arriving at those conditions.
A function whose value depends solely upon the current state of the system, and is totally independent of how that state was reached. As such, it is determined by the variables that determine the state of the system (eg pressure, temperature, etc.)
A function (or property) that defines the present state of a system. It does not depend on past conditions, i.e., is path-independent.
A function whose value depends only on the state of a substance and not on the path by which the state was reached
a boolean function whose return value depends only on state variables
a characteristic that only depends on "where" something is (its state) rather than how it got there (its path)
a function of the parameters of the system which only depends upon the parameters' values at the endpoints of the path
a quantity whose value does not depend on the path used to measure the value
A property that depends only on the condition or "state" of the system, and not on the path used to obtain the current conditions. Energy, enthalpy, temperature, volume, pressure, and temperature are examples of state functions; heat and work are examples of non-state functions.
In thermodynamics, a state function, or state quantity, is a property of a system that depends only on the current state of the system, not on the way in which the system got to that state. A state function describes the equilibrium state of a system. For example, internal energy, enthalpy and entropy are state quantities because they describe quantitatively an equilibrium state of thermodynamic systems.
