For what reason can the temperature of boiling water in a steam engine become high?

The temperature of boiling water in a steam engine can become high because there is high pressure inside the boiler; option [C]. Elevated pressure raises the boiling point of water, allowing it to reach higher temperatures before vaporizing into steam. This high-pressure environment is essential for efficient steam engine operation, as it enables the generation of high-pressure steam needed for power production. The increased temperature of the boiling water enhances the efficiency and effectiveness of the steam engine, facilitating the conversion of thermal energy into mechanical work. Therefore, the correct option is [C]. This principle is central to the operation of steam engines, where controlled pressure conditions inside the boiler ensure optimal performance and power output. Understanding the relationship between pressure, temperature, and boiling point is crucial in engineering applications involving steam power generation and utilization, highlighting the importance of maintaining high pressure within the boiler for efficient steam engine operation.