Consider the Mercury $(Hg)/$ Steam Binary Cycle comprising two ideal Rankine cycles shown below:

In the Hg cycle, saturate Hg vapor leaves the boiler at $850$ K $,$ and saturated liquid leaves the heat exchanger at $600$ K $.$

The heat rejected from the Hg cycle is transferred to the water steam cycle, which produces saturated water vapor at

$500$ K $.$ The steam is then superheated at that pressure to $750$ K using another source of heat. Saturated liquid water

leaves the condenser at $8$ kPa $.$ determine the following and show work neatly $!$