Calculate the thermal efficiency for this cycle if the pressure of the high-temperature steam is 6 mpa and the low-temperature heat-rejection process occurs at 300 k. calculate the quality at the beginning and end of the heat-rejection process.

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?