CHM 113 Lecture Notes - Kinetic Theory Of Gases, Effusion, Stoichiometry
Document Summary
Real gases behave most like ideal gases at low p and high t: At low pressure: particle size is negligible compared to the container volume, attractive forces are minimized. At high temperature: faster speeds and more energy to container attractive forces. Alternative to the ideal gas law is the van der waal"s equation: A and b are van der waal"s constants. Similar to ideal gas law: pv = nrt p = (nrt)/v. But with a few modifications: v is replaced by v-nb to correct for nonzero volume of particles, the (n2a)/v2 term corrects for particles attraction. To do calculations with a mixture of gases, we use dalton"s law of partial pressures: The partial pressures of the individual gases in a mixture add up to the total pressure: ptotal = pa + pb + pc , pair = pn2 + po2 + ph2o .
