At what point does is the energy at it’s lowest?
At equilibrium
What is a phase and give an example
a homogeneous, physically distinct, mechanically separable portion of a material with a
given chemical composition and structure.
Examples: solid, liquid, gas, BCC Fe, FCC Fe, FCC Cu
What is a component?
a pure element or compound
Examples: Fe, Cu, Al, C, H2O, SiO2