Consider a solar-pond power plant that operates on a simple ideal rankine cycle with refrigerant-134a as the working fluid. the refrigerant enters the turbine as a saturated vapor at 1.4 mpa and leaves at 0.65 mpa. the mass flow rate of the refrigerant is 3 kg/s. determine the thermal efficiency of the cycle. determine the power output of this plant.

An electric kettle is made out of stainless steel, weighs two pounds (when empty) and is equipped with a heating element that consumes 2 kw of electricity. assuming that the water and the kettle are at the same uniform temperature at any moment of time, calculate the shortest possible time to bring 2 quarts of water from room temperature to the onset of boiling