16. Phase Diagrams I

Question 1

Define phase

Answer 1

A homogeneous portion of a system that has uniform physical and chemical characteristics

Question 2

Define isomorphous

Answer 2

Liquid and solid regions each contain only one phase

Question 3

Phase diagrams assume ____ ____. This assumption suggests that diffusion happened _____ or enough time has passed to reach _____.

Answer 3

infinite diffusion
instantaneously
equilibrium

Question 4

What two things does non-equilibrium assume?

Answer 4

1. No or very little diffusion in solid, but instantaneous diffusion in liquid
2. No or little compositional changes in solid over time

Question 5

What structure does non-equilibrium cooling give rise to?

Answer 5

cored structures (center of solid particles may have higher concentration than outer regions of the solid)