[CHEM 211] - Final Exam Guide - Ultimate 30 pages long Study Guide!

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Gases- collections of atoms, ions, molecules behaving independently of one another. Intermolecular forces- forces of attraction between an atom or molecule and its neighboring atom. Fix volumes, liquid have stronger intermolecular forces than gases. Intermolecular forces: hydrogen bonding, dipole-dipole, london dispersion forces. Ideal gas: a gas that obeys kinetic molecular theory; there is no ideal gases are present in nature. Velocities are affected when molecules collide and exchange energy. Gain energy when collision= faster velocities than average gas molecule. Loss energy in collision= moving slower than average. Maxwell-boltzmann distribution- indicates the spectrum of gas molecular velocities. Gas heated = heat energy transferred to molecules = increase velocity. Mean free path: average distance a molecule travels before it collides with another molecule. Mean free path = distance molecule travels per second/ number of collisions per second. Solid molecule- no movement, less ke than gas or liquid. Gas have greatest because it have a lot of velocity and movement = ke.

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