CH 105 Study Guide - Final Guide: Pennsylvania Route 413, Ideal Gas, Gas Laws
Document Summary
Ideal gas- model of the way particles behave at the microscopic level. Volume and shape fills vol. of container fixed vol. dep. Very low virtually slide past each other vibrate about fixed. 1. 01 x 10^5 pa = 101 kpa = 1 atm. Kinetic molecular theory: gases are made up of small atoms that are in constant random motion distance of separation between atoms is very large so gas is mostly empty space. All atoms behave independently, no attractive forces exist. Atoms collide w/ each other and the walls of the container w/out losing energy. The avg. kinetic energy of the atoms inc/dec. in proportion to absolute temp. Boyles law: volume and pressure vary inversely: p1v1=p2v2. Charles"s law: volume varies directly with temp v1/t1 = v2/t2. *behave most ideally at low pressures and high temperatures. Viscosity: more complex/polar liquids have a higher viscosity (resistance to flow) Surface tension- measure of attractive forces exerted among molecules at the surface of a liquid.
