A nuclear-fueled electric power plant utilizes a so-called "boilingwater reactor". In this type of reactor, nuclear energy causes water under pressure to boil at 285 °C (the temperature of the hot reservoir). After the steam does the work of turning the turbine of an electric generator, the steam is converted back into water in a condenser at 40 °C (the temperature of the coldreservoir). To keep the condenser at 40 oC, the rejected heat must becarried away by some means - for example, by water from a river.The plant operates at three-fourths of its Carnot efficiency, andthe electrical output power of the plant is 1.20 10^9 watts. A river with a water flow rateof 1.0 10^5 kg/s is available to remove therejected heat from the plant. Find the number of degrees inoC by which the temperature of the river rises.