Final answer:
In a steam turbine, some of the heat is converted into mechanical work while the rest is dissipated as heat, with the excess heat being used for various purposes.
Explanation:
Heat can only be partially converted into work, as per the Second Law of Thermodynamics. In a steam turbine, some of the heat is converted into mechanical work, while the rest is typically dissipated as heat. This excess heat can be utilized for heating buildings, chemical processes, or in combined power cycles to increase overall energy efficiency.
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