Problems: developing engineering skills 135 water vapor initially at 10 bar and 400 degree c is contained within a piston-cylinder assembly. the water is cooled at constant volume until its temperature is 150 degree c. the water is then condensed isothermally to saturated liquid. for the water as the system, evaluate the work, in kj/kg.

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?