CHEM 1150 Chapter Notes - Chapter 1: Potential Energy, Kilogram, Covalent Bond
Document Summary
Scientific approach: observations: facts/quantitative data needing explanation, hypothesis: tentative proposal explaining observations, experimentation: tests hypothesis and educated guess, model (theory): predicts how observation occurs based on experimental results, further experimentation: test predictions based on model. Energy applicability: energy involves the ability to do work, 2 types. Potential energy: stored energy (based on position: total energy = kinetic energy + potential energy, systems go from high energy states (unstable) to low energy states (stable; ground state) 1 in = 2. 54 cm: volume. Si base units: mass --> kilogram (kg, length --> meter (m, time --> second (s, temperature --> kelvin (k) Solid: rigid and possesses a definite shape. Liquid: flows and takes the shape of a container, except that it forms a flat or slightly curved upper surface when acted upon by gravity. Gas: takes both the shape and volume of its container. Plasma: gaseous state of matter that contains appreciable numbers of electrically charged particles.
