CHMA10H3 Chapter Notes - Chapter 5: Kinetic Theory Of Gases, Elastic Collision, Kinetic Energy

• School: UTSC
• Department: Chemistry
• Course: CHMA10H3
• Professor: Heinz- Bernhard Kraatz

Document Summary

Assume the volume & shape of their container. 4 important properties to consider: pressure / volume / temperature / quantity. Gases moving in constant, random, straight-line motion. Average kinetic energy (1/2 mv2) is proportional to the temperature in k. Pressure | the force exerted per unit area by gas molecules as they strike the surfaces around them: total pressure depends on concentration of gas molecules in sample (cid:0) the higher the concentration, the greater the pressure. Chma10 |ch5 [slide/text: exhaling (cid:0) reverse process. Common unit of pressure millimitre of mercury (mmhg) how pressure is measured in a barometer. Mercury is a convenient way to measure pressure b/c it"s dense. Unit of millimeter of mercury = torr (evangelista torricelli; invented the barometer: 1 mmhg = 1 torr. Si unit for pressure = pascal (pa: avg sea lvl pressures = 101 325 pa = 101. 325 kpa. 1. 00 atm = 760 mmhg = 760 torr = 101. 325 kpa = 1. 01325 bar.