CHEM 120 Lecture Notes - Lecture 2: Ideal Gas Law, Gas Laws, Ideal Gas

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Explain and apply deal gas laws: relate and calculate physical variables p, v, n, t, determine properties, mixtures of gases, calculate relation between reaction stoichiometry p/v. Understand the limitations of the ideal gas laws and when it breaks down. Adopts and fills the shape of its container. Unlike liquids and solids, gas molecules have a much larger space between them. Volume of gas changes significantly with pressure. What we see (macroscopic observation) is based on how these particles are behaving (microscopic interactions) Due to the very low density of gases, they are measured in g/l vs g/ml. Gases exert pressure on the walls of their containers. Pressure = force/area: unit of force: newton (n) or kgms^-2, unit of area: m^2. What is the force experienced by an object that is 102 g: f = mass x acceleration, f = 0. 102 kg x 9. 8 nkg^-1, f = 1 n or 1 kgms^-2.