What Defines a Function of State in Thermodynamics?

[Von]

Homework Statement

What is a function of state? What kind of characteristics does it have? What kind of restrictions do the equations ΔU=Qv and ΔH=Qp have? Why can they be used to an adiabatic process?

Homework Equations

The Attempt at a Solution

 

[HallsofIvy]

Have you bothered to read either your textbook or the rules for the use of this forum? You are required to show SOME effort of your own before we will help you. In this case it looks to me like you are asked to quote a definition in your textbook or class notes.