CAS CH 102 Lecture Notes - Lecture 16: Collision Theory, Vaporization
Document Summary
The amount of heat released when a substance goes from solid to liquid. q=mhf q=heat m=mass. The amount of heat released when a substance goes from liquid to gas. q=mhv q=heat m=mass. When heat is released from a substance that doesn"t go through a phase change, a different formula is used. q=mc t q=heat m=mass. The rate of a reaction is the speed at which a reaction happens. If a reaction has a low rate, that means the molecules combine at a slower speed than a reaction with a high rate. Some reactions take hundreds, maybe even thousands, of years while others can happen in less than one second. The rate of reaction depends on the type of molecules that are combining. If you want to think of a very slow reaction, think about how long it took dinosaur bones to become fossils through breakdown.
