Galvanic or Voltaic Cell Definition

A galvanic cell is a cell where chemical reactions between dissimilar conductors connected through an electrolyte and a salt bridge produce electric energy. A galvanic cell can also be powered by spontaneous oxidation-reduction reactions. Essentially, a galvanic cell channels the electrical energy produced by the electron transfer in a redox reaction. The electrical energy or current may be sent to a circuit, such as in a television or light bulb. The electrode of the oxidation half-cell is the anode (-), while the electrode of the reduction half-cell is the cathode (). The mnemonic The Red Cat Ate an Ox may be used to help remember reduction occurs at the cathode and oxidation occurs at the anode. A galvanic cell is also called a  Daniel cell or a voltaic cell. How to Set Up a Galvanic Cell There are two main setups for a galvanic cell. In both cases, the oxidation and reduction half-reactions are separated and connected via a wire, which forces electrons to flow through the wire. In one setup, the half-reactions are connected using a porous disk. In the other setup, the half-reactions are connected via a salt bridge. The purpose of the porous disk or salt bridge is to allow ions to flow between the half-reactions without much mixing of the solutions. This maintains charge neutrality of the solutions. The transfer of electrons from the oxidation half-cell to the reduction half-cell leads to a buildup of negative charge in the reduction half-cell and of positive charge in the oxidation half-cell. If there were no way for ions to flow between the solution, this charge build-up would oppose and half the electron flow between the anode and cathode.

An Idea That Protects A Proprietor s Land Title - 1742 Words

Indefeasibility Introduction Indefeasibility of title is an idea that protects a proprietor’s land title. It allows for the proprietor to be immune from attack by adverse claims and interests in the land, in which he, the proprietor, is registered. This concept is based around the Torrens system in New Zealand, this concept consists of three main principles, the mirror, the curtain and the insurance principles. This essay will discuss the concept of indefeasibility of title, the Torrens system and how these have provided security of title for land owners in New Zealand. I will also report on two significant cases that will illustrate the concept of Indefeasibility of title, they are Frazer v Walker and Efstratiou, Glantschnig and Petrovic v Glatnschnig. Common Law Common law was implemented in New Zealand when the British settlers arrived. It was in accordance with English law and was known as the Deeds system and Act and was replaced by the Torrens system in 1870. Common Law basically stated that no one could confer a better title than the one they have and therefore if a deed was deemed invalid, so too was the title (Hinde 2013). Torrens System The Torrens system is what indefeasibility of title has been built around. It has existed since 1870 and has been refined and is now found in the Land Transfer Act 1952. The system, as mentioned earlier, consists of three principles, the mirror principle, the curtain principle and the insurance principle. †¢ The Mirror principle:Show MoreRelatedThe Objectives Of The Lra 2002 Replaces And Repeals The Land Registration Act 19251432 Words   |  6 Pagesreplaces and repeals the Land Registration Act 1925 in its entirety. However, the same principle which also applied in 2002 Act. Law based on these three principles. The â€Å"Mirror principle† provide that by the register should reflect or reflect all the rights and interests of the registered land titles. 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One-man Ownership and Control A sole trading concern is owned by an individual. The proprietor is the sole owner and master of the business. He independently manages and controls the business without the interference of any other person. 2.Read MoreEssay on Edgar Allan Poe2364 Words   |  10 Pages Edgar Allan Poe nbsp;nbsp;nbsp;nbsp;nbsp;Ralph Waldo Emerson called him the jingle man, Mark Twain said that his prose was unreadable, and Henry James felt that a taste for his work was the mark of a second-rate sensibility. According to T. S. Eliot, quot;the forms which his lively curiosity takes are those in which a preadolescent mentality delights.quot; After notices like those, most reputations would be sunk without a trace, and yet Edgar Allan Poe shows no sign whatsoever of looseningRead MoreMedia Law: Defamation, Copyright, Etc23627 Words   |  95 Pagesdocuments such as pleadings and proofs of evidence: This will not protect media reports of the contents of these documents. A fair and accurate report by newspaper, radio or television of proceedings publicly heard before any Court exercising judicial authority shall, if published contemporaneously with such proceedings, be privileged (provided no blasphemous or indecent matter is included) - Section 6 Wrongs Act. This section protects reports of proceedings heard before a Court exercising judicialRead MoreMedia Law: Defamation, Copyright, Etc23639 Words   |  95 Pagesdocuments such as pleadings and proofs of evidence: This will not protect media reports of the contents of these documents. A fair and accurate report by newspaper, radio or television of proceedings publicly heard before any Court exercising judicial authority shall, if published contemporaneously with such proceedings, be privileged (provided no blasphemous or indecent matter is included) - Section 6 Wrongs Act. This section protects reports of proceedings heard before a Court exercising judicial

Our Friends, Ourselves Essay Example For Students

Our Friends, Ourselves Essay In the reading Our friends, ourselves by Steve Duck he tells us that there are four rules that characterize friend ship. The rules are to hold a conversation, not to disclose confidences to other people, what I think is important and to refrain from public criticism, and to repay debts and favors. These rules allow friends to be open, helpful, trusting, affectionate, reliable, respect our privacy and us and will do favors for us and return the favors that we do for them. The reality of functions one of the items listed that really stuck out was that we need friends to keep us emotionally stable. My own personal experience is when both my grandfathers were very ill. One had a heart attack and had to have bypass surgery and the other had to have his throat cancer removed. My best friend, who just happens to also be my boyfriend, was there to not only support and comfort me but to also comfort my family. It was hard on us because we were down here, my dad was in Rhode Island, and all this was going on in Pennsylvania. All we could do was wait by the phone. Eric, my boyfriend, told us everything would be all right. He kept us from thinking about it in different ways. And of course he was right and both of my grandfathers are still alive and kicking today. The relationship between friendship networks is: we need friends to keep us mentally healthy. It is important to find ways of keeping and gaining friends. We also have to recgonize the different needs that each friendship has for us. I agree with this claim because people who do not have a lot of friends or any at all, always seem to be depressed and exclude themselves from society. Like that video that we watched in class where that little boy died of loneliness. I really think that friends affect that type of situation. Private language, intimate relationships, and personal idioms have a function of being private understandings. Friendships and cultures are similar, because in different cultures they use different languages or different dialects. Friendships have routine behaviors it is more important for daily life in cultures. This article has shown the importance to have friends. True friends are always there for you through thick and thin as you should be for them. Speech and Communications