A heat engine, X, operates between a reservoir at 1000˚C and a body at 600˚C. Heat transfer to the heat engine is 1000 kJ and work output is 220 kJ. Another Engine, Y, operates between, the body at 600˚C and the atmosphere at 27˚C. Heat rejected to the atmosphere is 400 kJ. The body of 600˚C maintains its temperature steady and has interactions only with the two engines X & Y. Calculate the work output and thermal efficiency of the engine Y
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