Aclosed, rigid tank contains 1.50 kg of water, initially a two phase liquid-vapor mixture at t1 = 80°c. heat transfer occurs until the tank contains only saturated vapor at t2 = 120°c. determine the initial pressure, p1, in kpa, and the heat transfer for the process, in kj.

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.