The cracking of hexane c6h14 to produce butane c4h10 and ethene. These revision notes on cracking hydrocarbons like alkanes in the petrochemical. Created by experienced teachers, this website contains computer science theory, quizzes, news, resources and a glossary of key terms all useful for students studying the aqa, ocr, edexcel, cie or eduqas gcse or igcse in. Cracking and alkenes crude oil, hydrocarbons and alkanes. Bbc bitesize has been updated for this course, and is much improved. So, learn all of these words and phrases of by heart.
Cracking allows large hydrocarbon molecules to be broken down into smaller. Cracking is the process of converting alkanes into alkenes and shorter alkanes. Gcse chemistry revision science section covering cracking and its products, hydrocarbons, catalyst, thermal decomposition, alkanes, single and double covalent bonds, and cracking paraffin. Cracking of hydrocarbons is illustrated in the below diagram. Cracking is the act of illegally removing the copyprotection and registration systems used in computer software etc.
Apr 21, 2012 for the love of physics walter lewin may 16, 2011 duration. Dec 19, 2017 6 videos play all 91 gcse chemistry paper 2 the atmosphere freesciencelessons gcse science physics 91 renewable sources of energy duration. Petrol and other fuels are produced from it using fractional distillation and cracking. Cracking hydrocarbons edexcel gcse chemistry revision notes. Cracking and alkenes gcse chemistry single science revision. Gcse revision scool, the revision website jump to navigation.
Gcse science revision fractional distillation youtube. For the love of physics walter lewin may 16, 2011 duration. It will be very hard to answer all the questions in the paper without knowing these key terms and definitions. This aqa syllabus a quiz will help you revise what they involve. Chemistry key terms and definitions revision universe.
Gcse chemistry revision scool, the revision website. You need to understand certain chemical reactions used in a variety of industrial processes for gcse chemistry. A catalyst can be a transition metal, a transition metal oxide see the uses of transition metals or an enzyme. Cracking is used to convert long alkanes into shorter, more useful hydrocarbons. Gcse science chemistry 91 carbon footprint youtube. Doc browns gcseigcseo level ks4 sciencechemistry revision notes. Crude oil can be separated into different fractions using fractional distillation. We also look at alkenes and how we test for alkenes using bromine water. We crack alkanes because the shorter chain alkanes are more valuable they are used as fuel.
Remember, dont rely on remembering them in the order they appear below as this will not be like an exam. Gcse combined science revision gcse computer science revision. We crack alkanes because the shorter chain alkanes are more valuable they are used. Privacy and cookies policy and we want you to know what this means for you.
Learn about the process of oil distillation in order to create fuels and plastics with bbc bitesize gcse chemistry. Come inside and find gcse science revision for all of the different aqa specifications for the gcse 2018. Give two disadvantages of using manufactured boards rather than hard or softwoods 2 marks 3. Gcse chemistry definitions when learning definitions i find it easier to move around and say them to yourself. High octane starter to inject pace which is easily adapted for other lessons. Cracking oil fraction hydrocarbons to produce more useful products. Cracking oil fractions reaction conditions products equations.
Revising for gcse is just so important but revision boredom can easily setin. For example, hexane can be cracked to form butane and ethene. Maths, english, biology, chemistry, physics, history, geography, religious studies and more. The bad news is that organic chemistry is kind of a big topic. Igcse complete chemistry notes refined and cleared by kmq. From chemistry worksheets to chemistry past papers you will find everything here. The process is known as catalytic cracking because it only happens in the presence of a catalyst substance which speeds up the reaction without being used up itself. In this video, we look at how cracking is used to convert.
Use it to further your understanding and compliment the other revision sources listed above. Gcses are easy motivation thread how to balance revision to get a grade 9 in 7 gcses gcse mock revision study helpers megathread. Cracking of hydrocarbons is covered before pupils are asked questions on the reasons for the process and how it is carried out. Cracking a problem of supply and demand, other products. Revision buddies gcse revision apps and website offer a modern approach to learning that is interactive and engaging. This means they contain at least one carboncarbon double bond which displaces two hydrogen atoms and thus, alkenes do not have the maximum number of hydrogen atoms per carbon atom. Gcse s are easy motivation thread how to balance revision to get a grade 9 in 7 gcses gcse mock revision study helpers megathread. Computer science gcse guru revision, quizzes and resources.
One family of hydrocarbons produced from crude oil is called the alkanes. Either way, it means the vast majority of crude oil can be turned into useful products. Learn about and revise fuels with this bbc bitesize gcse chemistry edexcel study guide. Give three advantages of using manufactured boards rather than hard or softwoods. In chemistry, it is a process of breaking down large alkane into simpler alkenes and alkanes. Give three reasons why mdf is used to make flat pack furniture. The american chemist, william burton, is usually credited with being the inventor of the thermal cracking process.
The majority of our fuels and plastics are derived from oil. Designed by expert teachers for the edexcel gcse 91 chemistry syllabus. Combustion products may cause environmental and health problems. Gcse chemistry revision covering cracking and its products, hydrocarbons, catalyst, thermal decomposition, alkanes, single covalent bonds, alkenes, double covalent bonds, and cracking paraffin. Oil, useful products, environmental problems, introduction to organic chemistry.
Hydrocarbons and crude oil gcse chemistry combined. Gcse chemistry what is the cracking of hydrocarbons. Erosion and weathering are the processes of wearing down materials like rocks. One of these is thermal cracking which is used on crude oil.
Some are common sense but make sure to test yourself afterward as at least 10 marks in every test will go to definitions. Gcse design technology revision manufactured boards. Cracking produces alkanes and alkenes hydrocarbons with double carbon. Whereas alkenes produce a smoky yellow flame as they dont fully combust. Gcse revision guide to bu ocr specificatio daniel holloway 101 siness studies n b. Gcse chemistry revision science section covering fractional distillation, hyrdocarbons, crude oil, fraction and molecules.
As particles move they collide with each other and bounce off in all directions. Free gcse revision guides and question banks covering biology, chemistry, physics, maths and much more. Computer science gcse guru is a popular and free revision website for anyone studying or teaching computer science gcse. Some of the large hydrocarbons the heavier fractions are broken down into more useful smaller hydrocarbons lighter fractions by a process known as cracking. Cracking is the name given to breaking up large hydrocarbon molecules into smaller and more useful bits. After the fractional distillation of crude oil there are too many large hydrocarbons and not enough small hydrocarbons to meet the publics demand. Find gcse revision resources covering edexcel, aqa and ocr for a range of subjects including. Remember, understanding is the first step on the road of success. Cracking oil and cracking gcse chemistry single science. In this series, students break down complicated revision subjects to its core components helping you rock your exams. If you are looking for gcse chemistry revision then visit maths made easy. Gcse crude oil revise processing by cracking and fracking. Combined science trilogy revision booklet 3 gcse command words command word definition example question example answer state, give, name, write down short answer only and does not require an explanation.
Gcse design technology revision manufactured boards 1. Cracking meaning types of cracking organic chemistry. We have included some articles from student jungle with advice and inspiration to help you with your future plans. For example, hexane can be cracked to form butane and. The starter is a data analysis activity that links in to the leaning objective. Cracking edexcel gcse chemistry single science revision.
Our teacher written quizzes provide an alternative to textbook swatting in the key subjects of english, english literature, maths, science, biology, chemistry, physics, geograpy, history and re religious education. You need to understand certain chemical reactions used in a variety. Cracking gcse chemistry single science revision wjec bbc. Gcse crude oil revise the thermal cracking reaction. So were going to split it up into the main topics you need to learn for gcse, namely alkanes, alkenes and and the cracking of crude oil. This is achieved by using high pressures and temperatures without a catalyst, or lower temperatures and pressures in the presence of a catalyst. Fractional distillation of crude oil oil and cracking. Everything you need to know about caves, arches, stacks and stumps on coasts. Gcse chemistry revision guides and question banks covering periodoc table, acids and alkalis, rates of reaction and all core gcse chemistry topics. This happens continually along coastlines, creating varying landforms and coastal features.
Gcse chemistry revision worksheets chemistry past papers. Petrol and other fuels are produced from it using fractional distillation. Cracking edexcel igcse chemistry notes save my exams. Gcse maths textbooks edexcel does anyone have a revision timetable template that i could use. Physics combined science trilogy revision booklet 3 gcse command words command word definition example question example answer state, give, name, write down short answer only and does not require an explanation. Cracking is an example of a thermal decomposition chemical reaction. Learn vocabulary, terms, and more with flashcards, games, and other study tools. In addition polymerisation the monomers have at least one double bond between carbon atoms. Teenagers sleep quality and mental health at risk over latenight mobile phone use the guardian 30517 researchers advise physical boundaries over devices in bedrooms after study finds poor sleep associated with phone use linked to depressed. There is a greater demand for smaller hydrocarbons than larger ones.
A fully resourced lesson with assessment on the cracking of crude oil. Hacking is the illegal access to a computer system without the owners consent or knowledge in an age of networks that never sleep, hacking can. Start studying dt resistant materials key terms edexcel gcse. In petroleum refining, this process is used in the production of petrol, diesel, and gasoline. Chemistry revision notes on the topic cracking hydrocarbons. Addition polymerisation involves addition reactions in which a large number of small molecules monomers join together to form very large molecules polymers. An exception is aluminium oxide, used for the cracking of hydrocarbons. Written by teachers for the cie igcse chemistry course. See more ideas about science revision, science and gcse chemistry. A substance which works well as a catalyst for one reaction might not work well as a catalyst for a different reaction.
In this video, we look at how cracking is used to convert longchain hydrocarbons into shorterchain hydrocarbons steam cracking gcse chemistry. Hacking is the illegal access to a computer system without the owners consent or knowledge in an age of networks that never sleep, hacking can be done remotely from anywhere. They are full of thousands of questions and detailed explanations that have been written by teachers to guide you to the most relevant facts that you need to know for your exams. So lets get cracking get it with alkenes and crude oil.
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