A gas turbine operates as a heat engine with the fuel combustion producing an effective heattransfer of 180 MW from a high-temperature reservoir. a. If the gas turbine produces a net power output of 80 MW, what is the thermal efficiency ofthe gas turbine? b. Assume the high-temperature reservoir is at 1500 K, the low-temperature reservoir is at 300 K, and there is a heat engine (can be any type) operating between these two thermal reservoirs. The supplied heat from the high-temperature reservoir to the heat engine is still 180 MW. What is the maximal net power output from such a heat engine that is allowed by the second law of thermodynamics?