UCB chem1a lec 32

Energy,Enthalpy,Entropy "keeping track of " something invisible

Physical (#chemical) change
 Heat transfer = q =q m C${}_p \Delta$T
 Melting and Vaporize


Chemical bonds
 H:Enthalpy
 H--:Exothemic
 H++:Endothermic (biologist call this "high energy"bond meaning highly reactive)

$\Delta$H
 Bond dissociation - (atoms) , - of formation (elements) #2 reference point

$\Delta$G${}^0$
 $\Delta$G${}^0$ = - R T $\ln$ K
 $\Delta$G${}^0$ = - n F $\Delta$E${}^0_{cell}$
 $\Delta$G${}^0$ = max work  ?P$\Delta$V?

E${}^0$ standard 'reduction' potential