Determine the specific volume of refrigerant-134a vapor at 0.9 MPa and 70oC based on:.(a) the ideal-gas equation, (b) the generalized compressibility chart, and (c) data fromtables. Also, determine the error involved in the first two cases.

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?