Homogeneous and heterogeneous mixtures mixture is air. In physical chemistry and materials science this refers to substances and mixtures which are in a single phase. This is in contrast to a substance that is heterogeneous. A solution has been a special type of homogeneous mixture. Solutions are homogeneous because the ratio of solute to solvent remains the same throughout the solution even if homogenized with multiple sources, and stable because the solute will not settle out after any period of time, and it cannot be removed by a filter or by centrifuge. This type of mixture is very stable, i.e., its particles do not
Reaction kinetics in uniform supersonic flow force for these reactions is typically an attractive long range intermolecular potential. CRESU experiments have been used to show deviations from Arrhenius kinetics at low temperatures: as the temperature is reduced, the rate constant actually increases. They can explain why chemistry is so prevalent in the interstellar medium, where many different polyatomic species have been detected (by radio astronomy). Reaction kinetics in uniform supersonic flow Reaction kinetics in uniform supersonic flow (, CRESU ) is an experiment investigating chemical reactions taking place at very low temperatures. The technique involves the expansion of a gas or mixture of gases through a