A heat engine operates steadily on the following cycle. Saturated water at a temperature of 200 C is pumped into a boiler and leaves as dry-saturated steam at a temperature of 200 C. After adiabatic expansion through a turbine to a pressure of 100 x 103 N/mthe dryness fraction is 0.90. The exhaust steam from the turbine passes to a condenser and is partially condensed, leaving at a pressure of 100 x 103 N/m with a dryness fraction of 0.15. The wet steam leaving the condenser is then compressed adiabatically in the feed pump before re-entering the boiler as saturated water at a temperature of 200C. i) Determine the specific entropy values around the cycle. ii) State whether the turbine and pump processes are reversible or irreversible, give reasons. . iii) Evaluate the heat transfer per unit mass of steam in each component, and determine the efficiency of the heat engine. T -