CHEM 1210 Chapter Notes - Chapter 10: Root Mean Square, Van Der Waals Equation, Molar Mass

• School: Ohio State University
• Department: Chemistry
• Course: CHEM 1210
• Professor: All

Document Summary

Long before there was any real understanding of atoms and molecules, it was well accepted that matter can also be classified (characterized) by its physical state- solid, liquid, gas, plasma. Characteristics of gases: gases differ from liquids and solids in several important ways: Gases form homogenous mixtures (i. e. mixtures) with one another under any conditions. Gases are larger relative to solids and liquids (i. e. there is much separation between molecules in a gas) The last point is important because with the gas molecules so spread apart, their chemistry is generally regarded as that of a single molecule. Gaseous properties are dominated by the idea that gases consist of lots of empty space. At room temperature and atmospheric pressure, the mass of a gaseous particle occupies about . 1% of the total volume- the rest is empty space. Pressure is the amount of force applied to an area: pressure, p = f/a.