Question: Is Enthalpy A Path Or State Function?

Is enthalpy a state function or pathway dependent?

Enthalpy is a state function because it depends only on two thermodynamic properties of the state the substance is at the moment (like temperature and pressure, or temperature and entropy, or any pair of other state functions).

It does not depend on the path followed by the substance to get there..

At what conditions heat can be a state function?

Hence, at constant volume and at constant pressure, heat change is a state function because it is equal to ΔU and ΔH respectively which are state functions.

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.

Which one is not a state function?

Heat and work are not state functions. Work can’t be a state function because it is proportional to the distance an object is moved, which depends on the path used to go from the initial to the final state.

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.

Is Heat a path or state function?

Heat and work are not state functions. Work can’t be a state function because it is proportional to the distance an object is moved, which depends on the path used to go from the initial to the final state.

Does enthalpy depend on Path?

Hi, Enthalpy is considered a state function because its current value will only depend upon the final and initial values of heat in a reaction, but not the path or process that occurred for it to reach that value.

Is distance traveled a state or path function?

The distance traveled is a path function.

Why is temperature a state function?

Temperature is a state function as it is one of the values used to define the state of an object. … Volume is a state function because volume is only dependent on the final and initial values and not on the path taken to establish those values. Any example that shows this statement in function is acceptable.