105 F11 Lecture 23 cmpd

105 F11 Lecture 23 cmpd - Chemistry 105 Where am I? Atoms...

Info iconThis preview shows pages 1–9. Sign up to view the full content.

View Full Document Right Arrow Icon
Chemistry 105
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Where am I? Atoms 106 Molecules Bonding Gases Liquids Solids Energy Reactions
Background image of page 2
What comes to mind when you think of a “gas?” What is vapor?
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
What is a gas? A gas . . . is a collection of atoms or molecules Particles are far apart Particles constantly move randomly expands to fill the volume of the container. is compressible. forms homogenous mixtures with other gases. Air, He, SF6, O2
Background image of page 4
“Air” Gas % (by vol.) Nitrogen 78.09 Oxygen 20.95 Argon 0.933 Water ~0.40 Carbon Dioxide 0.03 Neon 0.0018 Helium 0.0005 Krypton 0.0001 Hydrogen 0.00005 Nitrous oxide 0.00003 Xenon 0.000009
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Physical representation Boltzmann 3D
Background image of page 6
Kinetic Molecular Theory Gas particles are constantly colliding. Attractions and repulsions are negligible. When molecules collide, the collision is elastic; like billiard balls, rather than clay. Collisions do not change average energy of the gas.
Background image of page 7

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Average kinetic energy Average kinetic energy of the gas where: m is mass u is a measure of speed 2 2 1 mu KE =
Background image of page 8
Image of page 9
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 21

105 F11 Lecture 23 cmpd - Chemistry 105 Where am I? Atoms...

This preview shows document pages 1 - 9. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online