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In the context of the "The Complete Thermodynamics & Power Plant Engineering Course 2026: From Zero to Expert!", which of the following thermodynamic cycles forms the fundamental basis for most steam power plants, and what is its primary efficiency limitation?

asks for the primary efficiency limitation of the *cycle itself* as a foundation. The other options describe cycles fundamentally different from those used in steam power plants. Question: Considering the advanced topics in "The Complete Thermodynamics & Power Plant Engineering Course 2026: From Zero to Expert!", what is the primary advantage of using reheat in a steam power plant, and how does it impact the turbine's exit conditions?

For a power plant engineer mastering concepts from "The Complete Thermodynamics & Power Plant Engineering Course 2026: From Zero to Expert!", what is the fundamental thermodynamic principle that governs the operation of a regenerative feedwater heating system, and what is its primary purpose?