Calculate the number of chains in a 5 m-long PVC pipe with an inner diameter 5 cm and a thickness of 0.5 cm if the degree of polymerization in 1000. Assume that the chains are equal in length. The density of PVC is 1.4 g/cm3. The molecular weight of PVC monomer is (2 C atoms)(12 g/mol) (3 H atoms)(1 g/mol) (1 Cl atom)(35.5 g/mol)

Refrigerant 134a enters an insulated compressor operating at steady state as saturated vapor at -26°c with a volumetric flow rate of 0.18 m3/s. refrigerant exits at 9 bar, 70°c. changes in kinetic and potential energy from inlet to exit can be ignored. determine the volumetric flow rate at the exit, in m3/s, and the compressor power, in kw.

The drive force for diffusion is 7 fick's first law can be used to solve the non-steady state diffusion. a)-true b)-false

Items are similar to the free issue items, but their access is limited. (clo5) a)-bin stock items free issue b)-bin stock controlled issue c)-critical or insurance spares d)-rebuildable spares e)-consumables