CHEM 1000 Lecture Notes - Lecture 1: Elastic Collision, Gas Laws, Partial Pressure
15 Nov 2016
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Document Summary
Type of gas doesn"t affect the equation used to measure gas. Total pressure is the sum of all partial pressures. Water vapor could effect the equation due to the added pressure. Gas laws don"t tell you anything of the gas itself. Assumptions: they"re small but still big enough to collide, lots of them, movement u (velocity, collision, conserve energy (none lost when collided with one another) They theory could be used to predict gas laws. Assume constant volume, temp, mass and the calculate the only remaining unknown pressure. Momentum changes because the direction of the molecules change. When the molecules exert a force on the wall is known as pressure. Fast molecules have a greater change in momentum and a slow moving molecule have a smaller change in momentum. Smaller mass molecules don"t have as much impact on wall. Pressure is effected by how many molecules are hitting the wall.
