Metals and Non-metals
2 years ago
Experienced tutor with a PhD in nuclear astrophysics.
Intermolecular forces between compounds determine the state in which the substance can be found. If it is sufficiently large, the item is a solid. If it is sufficiently low and the force between molecules is not strong, the substance will be a diffuse gas. Therefore, you need to overcome the intermolecular forces which can range from hydrogen bonds, Van der Waals forces, and London forces depending on the compound in question. If you want to boil a simple compound such as water, you need to break all the hydrogen bonds that hold the molecules together in liquid form at room temperature.
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