CHEM 001B Lecture Notes - Lecture 6: Ideal Gas Law, Pressure Measurement, Molar Mass
Document Summary
Chem 001b lecture 6 - chapter 6. 3 - 6. 4. Closed-end : used to measure p of a gas sample less than p atm. Open-end : designed to measure p of a gas greater than p atm. The value of the product pv does not change for a given mass of trapped gas at constant temperature. Charles"s law: relating volume and temperature (1. 35 atm) (2. 54 l) (2. 50 atm) Volume of a gas extrapolates to zero at 0 kelvin or -273 . T 1 = 15 + 273 = 288 k. T 2 = 432 k - 273 = 159 . Avogadro"s law: relating volume and n (moles) Volume is directly proportional to the number of moles of gas. A gas in a sealed container has a pressure of 2. 20 atm at 25 . T 1 = 25 + 273 = 298 k. T 2 = 406 k - 273 = 133 . R = universal gas constant = 0. 08206 l*atm/(k*mol)
