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But how to operate an electrical device that needs a voltage greater than 1.5 V? The battery of the car is an association of six batteries of lead, placed one beside the other, coated with a sturdy material. As each cell increases the sum of the potential at 2 V, six batteries provide a voltage of 12 V. Recall that the positive ligand through a wire to the negative pole you build an electrical circuit and appears at the ends of the wire a potential difference (DDP) of the poles (one side has a greater amount of electric charge). As the intensity of the electric current depends on the amount of electrons that can provide these reactions and the amount of electrons depends on the amount of chemicals inside the cell, the greater the cell size of a chemical substance is more inside, so the electric current is more intense. You know that the amalgams are produced by reactions between metals silver, tin, copper and zinc with a small quantity of mercury. Thus the atoms of the tooth amalgam used in the transformation may undergo chemical and electrical contact with another metal such as aluminum metal present in the paper bale or gum. Aluminium metal has a lower reduction potential than zinc, copper, mercury, silver, therefore, undergoes oxidation to any one of amalgam compositions. Means that aluminum loses electrons more easily than amalgams, which receive these electrons. The gums and saliva, in turn, act as saline bridge which in the experiment was replaced with beef tripe (regenerated cellulose). The electric current (moving electrons) produced is small, causing the sensation of pain (shock) felt the nerves of the teeth. So far we have seen that the cells chemical energy is transformed into electrical energy spontaneously. Remember the "shock" caused by spontaneously foil? What happens if we reverse the process? That is, try to obtain a compound through the electric current generated by a battery or battery? By reversing the process, the chemical reaction is not spontaneous, electrons have to be forced to move by an external source (battery, electricity) to the other side (electrode). Is it possible?
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No, kako to rade u električni uređaj koji treba napon veći od 1,5 V? Baterija od automobila je udruženje šest baterija od olova, smješteni jedan pored drugoga, obložena čvrstog materijala. Kao što svaka stanica povećava iznos od potencijala u 2 V, šest baterije daju napon od 12 V. Podsjetiti da je pozitivno ligand kroz žicu na minus pol u izgradnji strujni krug i pojavljuje se na krajevima žice razlika potencijala (DDP) od pola (jedna strana ima veću količinu električnog naboja). Kao intenzitet električna struja ovisi o količini elektrona koji mogu pružiti ove reakcije i količina elektrona ovisi o količini kemikalija unutar stanice, veća stanica veličine kemijske tvari je više unutra, tako da električna struja je intenzivniji. Vi znate da su amalgama proizvedena reakcija između metala srebro, kositar, bakra i cinka sa malom količinom žive. Tako su atomi zuba amalgam se koristi u transformaciji može proći kemijske i električne kontakt s drugim metala poput aluminija metala prisutnih u papirnatom bali ili desni. Aluminij metal ima niži potencijal smanjenja od cink, bakar, živa, srebro, dakle, prolazi kroz oksidaciju bilo kojem od amalgam kompozicija. Znači da aluminij gubi elektrone lakše od amalgama, koji primaju ove elektrone. Desni i sline, pak, djeluju kao slane mosta koji se u eksperimentu je smijenjen s goveđi tripice (regenerira celuloze). Električne struje (pomični elektroni) proizvedeno je mala, što uzrokuje osjećaj boli (šok) osjetio na živce zuba. Do sada smo vidjeli da je energija stanice kemijskih pretvara u električnu energiju spontano. Sjeti se "šok" uzrokovane spontano foliju? Što će se dogoditi ako se obrnuti proces? To jest, pokušati se dobio spoj kroz električna struja generira baterije ili baterija? Do unazad proces, kemijska reakcija nije spontana, elektroni moraju biti prisiljeni da se presele strane vanjskog izvora (baterije, struja) na drugoj strani (elektrode). Je li moguće?