CHEM103 Chapter Notes - Chapter 5: Pressure Measurement, Gas Laws, Torr

• School: University of Alberta
• Department: Chemistry
• Course: CHEM103
• Professor: Mariusz Klobukowski

Document Summary

Chapter 5: gases and the kinetic molecular theory. 5. 1 overview of the physical state of matter. Most substances can exist as solid liquid or gas under appropriate conditions of pressure and temperature. Gas; adopt container shape, fills it, random movement. Liquid adopt the container shape to the extent of its volume. Solid has a fixed shape because its particles are close together and held rigidly in place. Gas exerts pressure on the walls of its container. Pressure; force exerted per unit of surface area. > 1 m long, closed at one end, filled with mercury, inverted into a dish. > when tube is inverted some mercury flows out into the dish and a vacuum. > sea level normal conditions 760 mm. > ratio of the weight to area is the same so radius of tube ain"t important. 1 atm = 101. 325 kpa = 760 mmhg = 760 torr.