State Functions

[Jielena_Bragasin2G]

Why is internal energy not a state function while heat and work are state functions? I thought initial energy would also be a state function since: State function = work + heat.

[sbeall_1C]

Heat and work are not state functions, but enthalpy is a state function!

[Venus_Hagan 2L]

Heat and work are not state functions. The path/steps that are taken to get the value matter.

[vpena_1I]

I think you meant it the other way around. Internal energy is a state function, while work and heat are not. The reason being, at least the way I think of it, is that an object can store internal energy. An object cannot, however, store work or heat. Work and heat is the process of internal energy being transferred from the system to its surroundings.

[Nick Lewis 4F]

What does it mean to be an "internal system"? What is the distinction between types of systems?