Deviations from the theory occur at higher concentrations and with electrolytes that produce ions of higher charges, particularly unsymmetrical electrolytes. Essentially these deviations occur because the model is oversimplified , so there is little to be gained making small adjustments to the model. Complete dissociation. Ion association may take place, particularly with ions of higher charge.
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Contributors A solution is defined as a homogeneous mixture of two or more components existing in a single phase. In this description, the focus will be on liquid solutions because within the realm of biology and chemistry, liquid solutions play an important role in multiple processes. Without the existence of solutions, a cell would not be able to carry out glycolysis and other signaling cascades necessary for cell growth and development.
Chemists, therefore, have studied the processes involved in solution chemistry in order to further the understanding of the solution chemistry in nature. Introduction The mixing of solutions is driven by entropy , opposed to being driven by enthalpy. While an ideal gas by definition does not have interactions between particles, an ideal solution assumes there are interactions.
Without the interactions, the solution would not be in a liquid phase. This is because the interactions between two liquids, A-B, is the average of the A-A interactions and the B-B interactions. Since in biology and chemistry the average interactions between A and B are not always equivalent to the interactions of A or B alone, the enthalpy of mixing is not zero. Consequently, a new term is used to describe the concentration of molecules in solution.
Teoria di Debye-Hückel