Steam is the working fluid in a heat engine. During steady-state operation, the steam enters the condenser as a saturated vapor at a pressure of 200 kPa, transfers heat to a coolant liquid, and exits with a quality of 0.10 at the same pressure. The entropy of the cooling liquid increases during the process by 5.9 kJ/K per kg of steam. a. Is the process reversible of irreversible? b. What is the temperature of the cooling liquid?