Abstract
The vapor viscosities of both normal and isopentane have been measured by the rotating cylinder method at different pressures ranging from a few millimeters pressure to the saturated vapor pressures all at 25°C. Twenty-eight measurements are given for normal pentane and thirty-seven for isopentane with an estimated accuracy of 0.2 percent. The plotted values for each compound shows a linear decrease with pressure, the slopes being nearly the same. The results may be expressed for normal pentane poises; for isopentane poises where is the pressure of the vapor in millimeters of mercury.
- Received 26 January 1932
DOI:https://doi.org/10.1103/PhysRev.40.281
©1932 American Physical Society