chem midterm - Because g is constant liquid pressure is...

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Because g is constant, liquid pressure is directly proportional to the liquid density and the heing of the liquid column. P = g x h x d Law of Combining Volumes: The volume ratio of the gases consumed and produced in a chemical reaction is the same as the mole ration (same temp and press) (coefficients = volume)note: xA is the mole fraction of A. It is the fraction of all the molecules in the mixture contributed by that component. Sum of all mole fractions in a mixture is one. Kinetic-Molecular Theory of Gases: -Small particles in constant, random, straight-line motion-- point masses – have mass but no volume because great distances between them -Most of the time molecules are not colliding with the wall or each other-No forces between molecules – expect briefly during collisions – acts independently -Total energy remains constant – however molecules can individually lose/gain energy Force exerted on the wall is based on:– frequency of molecular collision – collision frequency increases with the number of molecules per unit volume and with

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