Burns 1)are caused by heat and not light
2)are divided into four categories
3)have a high risk of infection because of dead tissue
4)are among the least common injuries in a welding shop

Describe one experiment in which the glass transition temperature and melting temperature of a totally amorphous thermoplastic material can be determined. show the relevant experimental results in a diagram which should be properly annotated with the two temperatures clearly marked. what is likely to happen to the curve in the diagram if the amorphous polymer is replaced by a thermosetting type?