Which parameter does not directly determine the saturation temperature?

Which parameter does not directly determine the saturation temperature?

• A. Steam quality
• B. Vessel height
• C. Heat transfer rate
• D. Pressure

Answer: (B)

Saturation temperature is determined by the pressure (and the substance) at which liquid and vapor can coexist. For a given pressure, the saturation temperature is fixed along the saturated curve, and factors like steam quality or how fast heat is added do not change that equilibrium temperature. Height of the vessel does not set this boiling point directly; it can create a hydrostatic pressure difference within the liquid (more head means higher pressure at deeper points), which might shift local saturation conditions, but height itself is not a direct determinant of the saturation temperature.

Saturation temperature is determined by the pressure (and the substance) at which liquid and vapor can coexist. For a given pressure, the saturation temperature is fixed along the saturated curve, and factors like steam quality or how fast heat is added do not change that equilibrium temperature. Height of the vessel does not set this boiling point directly; it can create a hydrostatic pressure difference within the liquid (more head means higher pressure at deeper points), which might shift local saturation conditions, but height itself is not a direct determinant of the saturation temperature.