Which of the following are true about a "simple compressible system"? It cannot be a mixture of different substances (e. g. oxygen and nitrogent) It's only relevant reversible work mode is associated with expansion or compression It may not have any heat transfer to or from the system Magnetization is a relevant reversible work mode It can be composed of any phases of a substance: solid, liquid, and/or gas It's state is specified if given two independent, intensive thermodynamic properties