01:160:162 Lecture 30: Electrochemistry

• School: Rutgers University
• Department: Chemistry
• Course: 01:160:162
• Professor: B.Langowski

Document Summary

If a system/reaction is at equilibrium under standard conditions. If a system/reaction is at equilibrium under nonstandard conditions. Have to determine whether a reaction in question is under standard conditions or not. S(cid:929)(cid:928)(cid:927)(cid:933)(cid:914)(cid:927)(cid:918)(cid:922)(cid:933)y (cid:928)(cid:919) (cid:916)(cid:921)(cid:918)(cid:926)(cid:922)(cid:916)(cid:914)(cid:925) (cid:931)(cid:918)(cid:914)(cid:916)(cid:933)(cid:922)(cid:928)(cid:927) (cid:916)(cid:914)(cid:927) (cid:915)(cid:918) (cid:929)(cid:931)(cid:918)(cid:917)(cid:922)(cid:916)(cid:933)(cid:918)(cid:917) (cid:934)(cid:932)(cid:922)(cid:927)(cid:920) suniv (cid:928)(cid:931) grxn. Spontaneity of a reaction can be changed by altering conditions. Spontaneity of electrochemical reaction can also be determined using standard cell potential. Many of the thermodynamic equations introduced in chapter 19 have electrochemical counterparts. Electrochemistry study of interconversion of chemical and electrical energies. Using electricity to cause a chemical reaction to occur. Electrochem has a lot of relevance: batteries, corrosion, converting minerals into pure metals, biochem processes. Oxidation-reduction reaction e- transfer reaction e- are transferred from one reactant (reducing agent) to another (oxidizing agent) Oxidizing agent reactant that gets reduced during process and allows another reactant to be oxidized. Reducing agent reactant that gets oxidized during process and allows another reactant to be reduced.