I. What is the difference between the two equations? HT=HTd+TdTpCpdTHT=HTd+TdTpCp1dT+HP+TpTpCp2dT For pure materials, with no phase change: HT=HT2+TjTCpdT If a phase transition takes place between the specified and datum temperatures, the latent heat of the phase transition is added to the sensible-heat change calculated by equation 3.11. The sensible-heat calculation is then split into two parts: HT=HTd+T2TpCp1dT+HP+TrTCp2dT II. What is the difference between Proprietary and Nonproprietary Equipment? Proprietary equipment, such as pumps, compressors, filters, centrifuges, and dryers, is designed and sold as standard catalog items by specialist manufacturers. Nonproprietary equipment is designed as special, one-off, items for particular processes, for example reactors, distillation columns, and heat exchangers, and is custom-built by specialist fabricators. III. All chemical processes can be categorized with the 6 blocks of the generic process flow diagram. Name 3 blocks only: 1) 2) 3)