Фізика 11. Урок-презентація «Електричний струм в електролітах. Електроліз» + 5 задач

Physics 11th grade. Presentation for lesson 12 on the topic "Electric current in electrolytes. Electrolysis". Distance learning: Physics -   / physics.ukr   Purpose of the lesson: Educational: To form an idea of ​​the nature of electric current in solutions and melts of electrolytes and the process of electrolysis; to clarify the physical content of Faraday's laws of electrolysis, the concept of electrochemical equivalent; to familiarize students with the practical application of electrolysis. Developmental. To contribute to the enrichment of vocabulary; the formation of cognitive independence; the development of observation, attention, memory, imagination, thinking; the development of the habit of planning one's actions. Educational. To cultivate attentiveness, concentration, observation. Online lesson for distance learning from the "Physics Online" project. Based on the book "Physics 11" edited by V. G. Bar'yakhtar, S. O. Dovhy. Some materials for this video are taken from the FIZIKA NOVA website https://www.fizikanova.com.ua/ If you liked it, don't forget to like, subscribe and share the video with those who might also be interested in it. 00:00 Lesson "Electric current in electrolytes. Electrolysis" 05:57 Electrolysis 07:44 Faraday's laws for electrolysis 11:01 Applications of electrolysis 14:18 How much divalent copper will be released during electrolysis for 3 hours, if the current strength is 10 A? 18:39 In 10 minutes, 508 mg of divalent metal was released in the electrolytic bath. Determine what metal it is if the current strength during electrolysis was 2.5 A. 23:30 Determine the electricity consumption for refining 200 kg of copper if the voltage at the electrodes of the electrolytic bath is 0.4 V. (Electrolytic refining is the electrolysis of aqueous solutions or salt melts, which allows obtaining high-purity metals.) 29:31 Two electrolytic baths are connected in series. Determine the amount of trivalent iron that will be released in the second bath in the same time that 19.5 g of divalent zinc was released in the first bath. 39:03 How long does it take to electrolytically coat a product with a silver layer 20 μm thick if the surface area of ​​the product is 200 cm2 and the current strength during electrolysis is 0.5 A? 46:11 Self-test questions