Molecular interactions determine physical properties from "summary" of Storm in a Teacup by Helen Czerski
The way things look, feel, and behave is down to the way the molecules within them interact. It’s like a recipe for making matter, a set of rules that determine the outcome of the experiment. These rules are written in an invisible language, a dance of attraction and repulsion between the particles that make up the world we see around us. The physical properties of a substance - its color, shape, density, and even its taste - are all determined by the way its molecules interact. These interactions are like tiny magnets, pulling and pushing on each other in a never-ending game of tug-of-war. Take water, for example. The reason why it’s a liquid at room temperature while other substances, like methane, are gases, lies in the way its molecules interact. Water molecules are like tiny magnets, with a positive side and a negative side. This means they can attract and stick to each other, forming a network of connections that give water its unique properties. These intermolecular forces are what kee...
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