One kilogram of water contained in a piston–cylinder assembly, initially saturated vapor at 220 kpa, is condensed at constant pressure to saturated liquid. consider an enlarged system consisting of the water and enough of the nearby surroundings that heat transfer occurs only at the ambient temperature of 25oc. assume the state of the nearby surroundings does not change during the process, and ignore kinetic and potential energy effects. for the enlarged system, determine the heat transfer, in kj, and the entropy production, in kj/k.

Acompressor receives the shaft work to decrease the pressure of the fluid. a)- true b)- false

Slip occurs via two partial dislocations because of (a) the shorter path of the partial dislocation lines; (b) the lower energy state through partial dislocations; (c) the charge balance.

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.