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Evaporation-Induced Liquid Expansion and Bubble Formation in Binary Mixtures
1Institut für Theoretische Physik, Universität Göttingen, Friedrich-Hund-Platz 1, 37077 Göttingen, Germany.
Physical Review Letters
|January 29, 2021
Summary
Numerical calculations reveal anomalous liquid expansion in binary mixtures due to evaporation-induced pressure imbalances. This phenomenon, driven by complex thermodynamics and dynamics, offers insights into evaporation processes.
Area of Science:
- Physical Chemistry
- Thermodynamics
- Fluid Dynamics
Background:
- Binary mixtures at coexistence exhibit complex thermodynamic and dynamic behaviors.
- Evaporation processes are crucial in various scientific and industrial applications.
Purpose of the Study:
- To investigate the anomalous liquid expansion observed in binary mixtures after pressure quenching.
- To elucidate the underlying mechanisms involving thermodynamics and kinetics of evaporation.
Main Methods:
- Numerical calculations were employed to simulate the behavior of a binary mixture.
- The study focused on quenching the mixture to low vapor pressures from a coexistence state.
Main Results:
- An anomalous liquid expansion was observed following the pressure quench.
- This expansion is attributed to a pressure imbalance at the liquid-vapor interface, resulting from coupled thermodynamic and dynamic factors.
- Controlled pressure quenches can induce spinodal bubble formation within the liquid phase.
Conclusions:
- The interplay between thermodynamics and kinetics significantly influences evaporation dynamics in binary mixtures.
- Understanding this interplay is key to advancing fundamental knowledge and practical applications of evaporation.
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