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)

To design a steam turbine to produce 12,000 hp power. a engineer comsiders using a steady state stean low st 1160fr and engineer considers using a steady state steam flow at 1160°r and 450 psia to drive this steam turbine. the exhaust of the steam is cooled by the lake (vacuum). heat losing to the surroundings is measured at a rate of 555.55 btu/s. (a) sketch the system with the given conditions. (b) neglecting kinetic and potential energy changes from inlet to exit, determine the volumetric flow rate of the steam at the inlet, (ft'/hr). must clearly show unit conversions at crtical terms.