A 1.5 kg of refrigerant R-134a initially at 500 kPa and 60 oC undergoes an isothermal, internally reversible compression process to the saturated liquid state. (5a) Please determine the heat transfer during this process, in kJ. (5b) Please also determine the work during this 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?