Refrigerant 134a is the working fluid in an ideal vapor compression refrigeration cycle operating at steady state. refrigerant enters the compressor at 1.4 bar, -12 degrees celsius, and the condenser pressure is 9 bar. liquid exits condenser at 32 degrees celsius. the mass flow rate of refrigerant is 7kg/min. write the first law energy equation across all devices in the cycles.

Agas mixture consists of 8 kmol of h2 and 2 kmol of n2. determine the mass of each gas and the apparent gas constant of the mixture.

Wiy doeres rere okhn a pump whon working betwon the same pressure range?

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.