Joint experiments on homogeneous nucleation. measurements of nucleation rates in supersaturated n-pentanol vapor

Abstract

This chapter helps in the measurements of homogeneous nucleation rates in supersaturated n-pentanol. Helium mixtures are performed at specified thermodynamic conditions. By applying well tested instrumentation, definitive data can be generated covering an extensive range of nucleation rates. This allows direct quantitative tests of nucleation theories. For the first time it is possible to directly intercompare several nucleation experiments and verify the results from different experimental methods. In joint experiments, homogeneous nucleation in supersaturated n-pentanol vapor is investigated. Nucleation rates are measured in diffusion chambers, fast mixing chambers, and various types of expansion chambers under specified thermodynamic conditions using the compound from the same lot for all experiments. Different experimental methods are quantitatively compared and a wide range of nucleation rates can be covered allowing a sensitive test of various nucleation theories.