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

Explanation:

The volume of a simple compressible system is not fixed. At a state of equilibrium, there should be uniformity in the entire system.

From the question we have here, these are the correct options:

1. It cannot be a mixture of different substances (e.g. oxygen and nitrogent)

2. It can be composed of any phases of a substance: solid, liquid, and/or gas

3. It's state is specified if given two independent, intensive thermodynamic properties.

a and b sometimes have a positive value

laticia draws the diagram below to show earth’s magnetic field.

answer

the arrows to the right of earth should point up.