Editing revision 17 of Four Basic Principles
ChemistryWiki
|
RecentChanges
|
Preferences
Editing old revision 17. Saving this page will replace the latest revision with this text.
There are four (4) basic principles that can be used to describes all chemical concepts. To explain a concept, one can utilize one or more of these principle.<br> <br> <u><b>Kinetic Molecular Theory (KMT)</u></b><br> Definition: All substance are made up of [[Particles]] (basic units) that are in constant motion (therefore has energy) and sometimes they interact.<br> *There are two different ways that particles can interact: **1) The components that make up the [[Particles]] can regroup to create new grouping (I call new [[Particles]]). We call this a Chemical Reaction (chemical change). **2) The components that make up the [[Particles]] <b>DO NOT REGROUP</b> so that [[Particles]] do not change but they just influence each other. We call this a Physical process. The influnece is called <nowiki>Intermolecular Force</nowiki> (IMF) *College Board AP chemistry does not use the name KMT but inside uses the phrase "particle view of matter". This means the same thing as KMT.<br> <br> <u><b>Conservation of Mass</u></b><br> Definition: Mass can not be gained nor lost in a physical process or chemical reaction. A more simple def is Mass is conserved.<br> *In general chemistry (excluding nuclear chemistry), we do not use Einstein equation, E=mc<sup>2</sup> which basically means that Energy (E) can be changed directly into matter (m). Not in our chemistry. <br> <u><b>Conservation of Energy</u></b><br> Definition: See above Conservation of Matter definition and replace mass with energy (including Einstein work)<br> <br> <u><b>Coulombic Force (those are my words, real name is Coulomb Law)</u></b><br> Definition: Same charge particles repel, different charge particles attract.<br> *If you are having a hard time understanding it, it is like when magnets interact *Feynman said that if all human knowledge was eliminated and you need one concept to figure out all other concepts, it would be Coulomb Law. *By the way, Feynman, really really smart dude.<br> <br>
View other revisions
ChemistryWiki
|
RecentChanges
|
Preferences