## What is a non state function?

Non-state function – the path you take makes a difference in where you want to end up or what the values will be.

Example: The distance between two cities depends on the path you take.

…

Your distance traveled will be different in each case.

In terms of chemistry, pressure, volume, temperature are all state functions..

## What is the opposite of a state function?

The opposite to a state function is a path dependency; work and heat are path dependent in general. A change in state is not a function of state, by definition it is a function of two states, so it would be a bi-state function.

## What is meant by state function?

A state function describes the equilibrium state of a system, thus also describing the type of system. … Internal energy, enthalpy, and entropy are examples of state quantities because they quantitatively describe an equilibrium state of a thermodynamic system, regardless of how the system arrived in that state.

## Which one is not thermodynamic state function?

Heat (q) and work (W) are not state functions being path dependent. A state function is the property of the system whose value depends only on the initial and final state of the system and is independent of the path.

## Why Heat is not a state function?

A state function is independent of pathways taken to get to a specific value, such as energy, temperature, enthalpy, and entropy. Enthalpy is the amount of heat released or absorbed at a constant pressure. Heat is not a state function because it is only to transfer energy in or out of a system; it depends on pathways.

## How do you determine a state function?

trivially: if a quantity is uniquely determined by the equilibrium state then it is a state function, otherwise it is not. ΔU is clearly not a state function, since by its very definition (ΔU=Ufinal−Uinitial) it is not determined uniquely by the state of the system: neither by the final, nor by the initial one.