SCRIBE

Hi guys.. its me Aldrin scribing for our laaaaaasst friday class, just before spring break.:(

First thing, I'm terribly sorry for doing this scribe soooo late. I'm sure i have a reason, hopefuly:).


Here is last Friday's Scribe!!

at the start of the class Mrs' K gave us two new handouts regarding "CHEMICAL KINETICS" .
She read us through it and we learned how to differentiate an EXOTHERMIC to an ENDOTHERMIC reaction. specially using a reaction coordinate diagram.

** In an Exothermic reaction, the products possess less energy than the reactants.
During the reaction, heat is lost from the system and [HEAT(delta H) is a negative value]



**In an Endothermic reaction, the products possess more potential energy than the reactants.
This energy is absorbed from the surroundings, increasing the systems energy content.
[HEAT(delta H) is a positive value]



we also learn about ACTIVATION ENERGY(EA) - minimum amount of energy required for colliding particles to produce a chemical reaction.

after that, we answer a couple of questions regarding it.

Kinetics Assignment #2 ( 1-3)


*just remember to label the diagram properly
*locate the activation energy
and the HEAT change - whether absorbed or release
*exothermic(change in heat is a negative value)
endothermic(change in heat is a positive value)

well thats all for my scribe..
again, i'm really sorry for a very late post.
Yonas to scribe for Monday.

see you guys tomorrow. have a good night everyone!!