The key properties of steam that affect its generation and distribution include temperature, pressure, enthalpy, and specific volume. Understanding these properties is crucial for designing and operating efficient steam systems. For example, steam temperature and pressure directly impact the efficiency of heat transfer, while enthalpy affects the energy content of steam. Specific volume, on the other hand, influences the sizing of pipes and equipment. The Steam Handbook provides detailed information on these properties and their impact on steam system design and operation.