PPT-Electrolysis – The Final Topic of Chemistry 30

Mr Chapman Electrolysis Think of electrolysis and electrolytic cells as the opposite of electrochemical cells In electrochemical cells a spontaneous REDOX reaction is used to create . The electrolysis of aqueous solutions. Aqueous. solutions are solutions in . water. .. Water is a very weak electrolyte. It ionises very slightly to give hydrogen ions and hydroxide ions.. H. 2. O. (l). Pg. 658 - 660. Let’s talk about the lab…. In lab the reactions were spontaneous!. The solutions were arranged so that the electrons would move through the wires. Voltaic cells involving spontaneous reactions are typically used to run motors and perform other useful work. Electrolytic Cells. :. When a non-spontaneous . redox. reaction is made to occur by putting electrical energy into the system.. The battery (energy source) acts as a “pump” pushing electrons into the cathode and removing electrons from the anode.. Electrolysis . Process by which an electric current is passed through a substance to cause a chemical change.. The chemical change is one in which the substance loses or gains an electron.. Electrolysis. as. an . energy. . carrier. : . production. . and. . utilisation. Dr.-Ing. . R. oland . Hamelmann. D-23611 Bad Schwartau. Dr.-Ing. Roland . Hamelmann. TU Clausthal, . chemical. . engineering. (. Electrolytic Cells. :. When a non-spontaneous . redox. reaction is made to occur by putting electrical energy into the system.. The battery (energy source) acts as a “pump” pushing electrons into the cathode and removing electrons from the anode.. Electrolysis. . is the process of converting . electrical. . energy into . chemical. . energy.. Voltaic. cells . produce. electrical energy and . are viewed as. . exothermic. reactions.. Electrolytic. Baseline (Flightpath D): State that aluminium can be extracted from aluminium oxide using electrolysis. Write a word equation to describe the electrolysis of aluminium oxide. .. Further (Flightpath C&B): Describe the electrolysis of aluminium oxide. Explain why electrolysis is an expensive metal extraction method and illustrate this with the extraction of aluminium.. • What is “Inorganic Chemistry”?. . - descriptor or professional subfield. . - same as “General Chemistry”?. • Highlights from the inorganic timeline. . - Lavoisier: origin of modern chemistry. Electrolysis . Process by which an electric current is passed through a substance to cause a chemical change.. The chemical change is one in which the substance loses or gains an electron.. Electrolysis. Key Words:electrolysiselectrolyteelement Understanding Solar Energy Teacher PageElectrolysisStudent ObjectiveThe student:•will be able to explain how theelements hydrogen and oxygen ca . It . involves a chemical reaction run in a continuous flow stream.  The process offers potential for the efficient manufacture of chemical products. . . Recent . breakthroughs using Vapourtec systems are in production of . Monday, 05 October 2020. CHAPTER 5: CHEMICAL CHANGES. Do Now: . These are the answers… what could the questions be?. Electrolysis. Anode. Cation. Electrolyte. Electrode. Spec 5.4.3.4. PROGRESS INDICATORS. Mogens B. Mogensen . Technical University of Denmark, . DTU Risø Campus. DK-4000 Roskilde. Denmark. momo@dtu.dk. 2. nd. Joint European Summer School on Fuel Cell and Hydrogen Technology,. Crete, September .