The discussion centers on whether there is an endothermic reaction between dry ice and acetone, exploring the nature of their interaction, including heat exchange and dissolution processes. Participants examine the thermodynamic implications of this interaction, considering both chemical and physical perspectives.
Participants express differing views on whether the interaction is purely a heat exchange or if it involves endothermic dissolution. There is no consensus on the nature of the process, with multiple competing explanations presented.
Participants note the complexity of thermodynamic principles involved, including the need for valid theories of solution and the challenges in understanding gas solubility in liquids. There are references to unresolved mathematical steps and the dependence on specific conditions.
This discussion may be of interest to those studying thermodynamics, physical chemistry, or anyone curious about the interactions between gases and liquids, particularly in the context of endothermic processes.
No. The acetone serves as a heat exchange fluid._Anthony_ said:endothermic reaction
Zero for temperature difference; generally, evolution of heat for non-reactive dissolution of gases in a liquid phase. Misapplication of the phase rule, treating two phases instead of three, will result in very screwy descriptions of phenomena._Anthony_ said:It identifies a Heat of Solution as a contributor to temperature reduction. So the dissolution of CO2 in acetone is endothermic. At a temperature around -78C or so, how much?