CHEM 121 Lecture 11: Chapter 9 Notes
Document Summary
Have a lower density than a liquid and a solid. Average speed which is dependent on the temperature. Hg height @ sea level which is 760 mm or 30 inches. Manometer is a tube in the shape of a "u" Pressure, volume, temperature, and moles: when the volume is high, the pressure is small, when the pressure is high, the volume is small, when temperature increases, volume increases, when temperature decreases, volume decreases. Ideal gas law (pressure x volume) / (number of moles x temperature) = constant. At stp; constant = 8. 206 x 10-2 l x atm / mol x k. Pv = nrt (p1 x v1) / (n1 x t1) = (p2 x v2) / (n2 x t2) Density = (n(mol) x mm (g/mol)) / (volume in l) Density of a gas = (p x mm) / (r x t) Pressure goes up with an increase in moles. Average kinetic energy is directly proportional to temperature in kelvin.
