CHEM 1128Q Lecture Notes - Lecture 2: Intermolecular Force, Miscibility, Potassium Chloride

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25 Feb 2018
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CHEM 1128Q Full Course Notes
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CHEM 1128Q Full Course Notes
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Chem 1128q - lecture 2 - chapter 11 - 1/18/18. Liquids are a group of people grouped together by their intermolecular forces. Liquids are like protestors, the molecules are all the same and hold together. The smaller amount of stuff that mixes in is called the solute. The bulk of the stuff is called the solvent. The combined mixture of the two is called the solution. The schematic representation of dissolution shows a stepwise process involving the endothermic separation of solute and solvent species (steps 1 and 2) and exothermic solvation (step 3). Gases have no intermolecular forces, so they are easier to mix. Samples of helium and argon spontaneously mix to give a solution in which the disorder of the atoms of the two gases is increased. Forming a solution is spontaneous you do not need to add energy. Stirring and heating something to make a solution speeds things up.