Steam enters the turbine of a cogeneration plant at 7 mpa and 500°c. one-fourth of the steam is extracted from the turbine at 600-kpa pressure for process heating. the remaining steam continues to expand to 10 kpa. the extracted steam is then condensed and mixed with feedwater at constant pressure and the mixture is pumped to the boiler pressure of 7 mpa the mass flow rate of steam through the boiler is 30 kg/s. disregarding any pressure drops and heat losses in the piping, and assuming the turbine and the pump to be isentropic, determine the net power produced and the utilization factor of the plant.

120,630,890

step-by-step explanation:

110+10=120,620+10=630,880+10=890

chemical changes occur when a substance combines with another to form a new substance, called chemical synthesis or, alternatively, chemical decomposition into two or more different substances. these processes are called chemical reactions and, in general, are not reversible except by further chemical reactions. some reactions produce heat and are called exothermic reactions and others may require heat to enable the reaction to occur, which are called endothermic reactions. understanding chemical changes is a major part of the science of chemistry.