The specific volume of boiling liquids decreases with increasing pressure at saturation temperature due to their lower compressibility compared to gases. As pressure rises, the density of the liquid increases, resulting in a decrease in specific volume. Conversely, the specific volume of vapor at saturation temperature also decreases with increasing pressure, as gases are more easily compressed. This phenomenon is closely linked to thermal expansion and atomic vibrations, which affect the density and specific volume of both liquids and gases.
PREREQUISITESStudents and professionals in engineering, particularly those focused on thermodynamics, material science, and fluid mechanics, will benefit from this discussion.