CM-UY 1004 Lecture 5: Chem Review CHAPTER 5.1-5.3 – GASES
31 Jul 2016
School
Department
Course
Professor
Document Summary
Note: look at table 5. 1 on page 138 for some substances that are found. 5. 1 substances that exist as gases as gases at 1 atm and 25 c (ie. nitrogen, oxygen, various oxides, Physical properties of gases molecular fluorine, molecular chlorine, noble gases ) Has much lower densities than liquids and solids. Mixes evenly and completely with gases in the same container. Deriving si unit of pressure velocity = distance moved / elapsed time acceleration = change in velocity / elapsed time. Force = mass * acceleration the si unit of force is the newton (n) Pressure is the force applied per unit area = force / area the si unit of pressure is the pascal (pa) = 1 n/m2. Atmospheric pressure the pressure exerted by earth"s atmosphere. The barometer is the most familiar instrument used for measuring atmospheric pressure. Standard atmospheric pressure (1 atm) = pressure of 760 mmhg (76 cm column hg @ 0 c at sea level)
