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explain the process of coal in short answer

class 7 science physical chemical changes ncert solution

Answer In the setting of curd, milk changes into new substance, curd. This is an irreversible process that means milk cannot be made from curd. Formation of new substance and irreversible process shows that setting of curd is a chemical change.

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NCERT Solutions Class 8 Science Chapter 5 Coal and

Answer Dense forests got buried under the soil due to natural processes, millions of years ago. More and more soil got deposited over them and they got compressed more. This led them to get exposed to very high temperature and pressure. They slowly got converted into coal under these extreme conditions.

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TVA How a Coal Plant Works

Coal-fired plants produce electricity by burning coal in a boiler to produce steam. The steam produced, under tremendous pressure, flows into a turbine, which spins a generator to create electricity. The steam is then cooled, condensed back into water and returned to the boiler to start the process over.

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Explain the process of production of electricity by coal{i

May 26, 2007In addition, industry and government have cooperated to develop clean coal technologies that either remove sulfur and nitrogen oxides from coal, or convert coal to a gas or liquid fuel. The scrubbers and NOx removal equipment are also able to reduce mercury emissions from some types of coal.

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Coal Anthracite, Bituminous, Coke, Pictures, Formation, Uses

The answer to that question is the primary reason that the formation of a coal seam is a highly unusual occurrence. It can only occur under one of two conditions 1) a rising water level that perfectly keeps pace with the rate of plant debris accumulation; or, 2) a subsiding landscape that perfectly keeps pace with the rate of plant debris accumulation.

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Recruitment Process Tutorialspoint

Recruitment process is the first step in creating a powerful resource base. The process undergoes a systematic procedure starting from sourcing the resources to arranging and conducting interviews and finally selecting the right candidates. Recruitment Planning. Recruitment planning is the first step of the recruitment process, where the vacant positions are analyzed and described.

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Coal Mining and Processing Energy Trends Insider

Processing the Coal After coal comes out of the ground, it typically goes on a conveyor belt to a preparation plant that is located at the mining site. The plant cleans and processes coal to remove dirt, rock, ash, sulfur, and other unwanted materials, increasing the heating value of the coal.

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COAL CHARACTERISTICS purdue.edu

coal is heated to 950C (1,742F) in the absence of air under specified conditions components of coal, except for moisture, which is liberated usually as a mixture of short long chain hydrocarbons, aromatic hydrocarbons some sulphur measured practically by determining the loss of weight Consists of a mixture of gases, low-boiling-point

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Lakhmir Singh Science Class 8 Solutions Chapter 5 Coal and

Jun 10, 2019Lakhmir Singh Science Class 8 Chapter 5 Short Answer Type Questions. Question 24. Explain why, fossil fuels are exhaustible natural resources. Answer The amount of fossil fuels is very limited in nature. They can be exhausted by human activities. The formation of fossil fuels is a very slow process.

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Coal Combustion and Combustion Products

UNESCO EOLSS SAMPLE CHAPTERS COAL, OIL SHALE, NATURAL BITUMEN, HEAVY OIL AND PEAT Vol. I Coal Combustion and Combustion Products Xianglin Shen Encyclopedia of Life Support Systems (EOLSS) 3.1.1 Fixed Grate An overfeed fixed bed on a fixed grate is the most simple way of coal combustion.

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Short Answer Questions (Part 2) Coal And Petroleum

Do check out the sample questions of Short Answer Questions (Part 2) Coal And Petroleum for Class 8, the answers and examples explain the meaning of chapter in the best manner. This is your solution of Short Answer Questions (Part 2) Coal And Petroleum search giving you solved answers

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Get Unstuck Course Hero

Instant access to millions of Study Resources, Course Notes, Test Prep, 24/7 Homework Help, Tutors, and more. Learn, teach, and study with Course Hero. Get unstuck.

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Petroleum Formation what is the formation of petroleum

Petroleum Formation. During the decomposition process tiny bacteria will clean the remains of certain chemicals such as phosphorus, nitrogen and oxygen. This leaves the remains consisting of mainly carbon and hydrogen. At the bottom of the ocean there is insufficient

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Coal Analysis, Sampling Testing at Standard Laboratories

Standard Laboratories, Inc. has the facilities to provide a wide variety of coal sampling and testing, as well as other support services for the coal mining and processing industries. We have facilities and partner companies throughout the United States to assist projects in any region of the country.

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NCERT Solutions for Class 11 Chemistry Chapter 9 Hydrogen

Answer The production of dihydrogen in coal gasification can be increased by reacting CO(y) present in syngas with steam in the presence of iron chromate catalysts. With the removal of C0 2 the reaction shifts in the forward direction and thus, the production of dihydrogen will be increased.

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Advantages and Disadvantages of Coal fired for Power

Aug 05, 2015Among the fossil fuels, coal is the most widely used fuel in power plants. Fossil fuels are indeed the top fuels used all over the world for generating power and electricity.

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Coal Facts Uses, Properties, Anthracite, Heat

Coal Facts. Check out these interesting coal facts and learn more about its uses and properties. Coal is an important resource that is used to create heat, energy and electricity. Read on for some amazing facts and information about coal consumption, coal production, the mining industry, coal power, its effects on the environment and more.

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Proximate and Ultimate Analysis Mining SGS

Mining Proximate and Ultimate Analysis. Accurate results from proximate and ultimate analysis of coal, coke and biofuel are an important step in mining and processing operations. Ideally, these tests should comply with accepted international standards and be conducted under the strictest laboratory controls.

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Coal mining Wikipedia

Coal mining is the process of extracting coal from the ground. Coal is valued for its energy content and since the 1880s, has been widely used to generate electricity. Steel and cement industries use coal as a fuel for extraction of iron from iron ore and for cement production.

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How coal is formed zmescience

Jan 15, 2016However, no matter the type of coal or how you use it, coal is a non-renewable resource. In realistic terms, no coal is being formed to restock the resources we are using. ADVERTISEMENT

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How coal is formed zmescience

Jan 15, 2016Types of coal. Coal can be used in its natural form, or it can be either gasified, liquefied or refined. However, no matter the type of coal or how you use it, coal is a non-renewable resource. In realistic terms, no coal is being formed to restock the resources we are using.

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Third grade Lesson Coal Mining An Introduction

I live in a community that does not mine coal, and I found that students' ability to answer this question was very limited. They primarily thought of coal as something with which to make a fire or heat up a barbecue grill. Then we go through the rest of the short introductory presentation and discuss each general use of coal.

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Class 8 Science Chapter 4 Combustion and Flame Blogger

Jul 11, 2014Answer Although the process of rusting also involves oxidation but it cannot be termed as combustion. The reason for this is that combustion is defined as a process in which oxidation is accompanied by heat and heat is not produced during rusting.

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How Did We Get All This Coal? Answers in Genesis

Apr 01, 2013After a series of such experiments, the team concluded that coal can be produced directly from plant materials via thermal reactions speeded up by the clay minerals in only one to four months.8 Other experiments have also confirmed that clay particles act as chemical catalysts in a rapid coal-forming process.9 It is thus significant that clay minerals often account for up to 80 percent of the non

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Coal A Complex Natural Resource USGS

Coal is used in the production of other, perhaps unexpected products such as pharmaceuticals, textile dyes, food and wood preservatives, and other simple or highly complex chemicals (see centerfold). These chemicals typically are produced during the production of coke by a process called destructive distillation.

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Chapter 8 Plate Tectonics National Disaster

Plate tectonics answers other questions Science is a process that builds on itself. Early discoveries provide a better understanding that leads to more discoveries. The evidence that Alfred Wegener collected to support an ancient supercontinent is valid today. And our understand ing of plate tectonics has allowed us to answer other questions such as

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Advantages and Disadvantages of Coal fired for Power

Aug 05, 2015But, is coal really the answer to affordable and sustainable energy? To find answers for this question, it is best to learn about the advantages- and disadvantages- of coal fired plants.

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Carbon, Chemical Element structure, reaction, water

Plants use carbon dioxide in the atmosphere in the process of photosynthesis. Photosynthesis is the process by which plants convert carbon dioxide and water to carbohydrates (starches and sugars). This process is the source of life on Earth. Carbon also occurs in coal, oil, and natural gas.

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Why Is Coal Considered a Non-Renewable Resource

Full Answer. Coal is used in some areas to create electricity. It is mined and cleaned at the coal mine and then transported via train or barges to the electric plant. When it reaches its destination, the coal is burned in boilers to produce electricity. The estimated amount of coal reserves in

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How to Answer Extended-Response or Essay Questions

Good extended-response answers have three parts a beginning, a middle, and an ending. Beginning. The first paragraph introduces your main idea or position. It begins with a topic sentence. The topic sentence states plainly the point you intend to make in your answer. Often it

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