CHEM 1100 Lecture Notes - Lecture 7: Unix System Iii, Thermodynamics, Butane
Document Summary
Energy, work, and heat: work: movement of an object over a distance, heat: energy flows from hot cold, temperature: amt of heat energy in an object, determines direction of heat flow, measurement of molecular motion. ***heat is a result of how quickly molecules are moving; temp is a measure of the avg speed of that motion. Energy from molecules: hydrocarbons, ex: butane, c(n) h(2n+2, coal, used to create electricity in power plants, process, combustion. 200 ml of water vs 100 ml of water. 200 ml has 2x the molecules 2x the heat! Also 2x energy needed to heat up. Heat in an object depends on: temp, mass, material. Raise temp of 1 g of h2o by 1 deg c. 1 calorie = 1,000 calories = 1 kilocalorie. *** thermodynamics: how heat moves: first law of thermodynamics: energy is neither created nor destroyed (aka law of.
