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Cards In This Set
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Explain why fossil fuels are exhaustible natural resources
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It is because fossil fuel can be used completely and do not last forever.it has a limited quantity in nature and can be used by human activities
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Describe how coal was formed.what is this process called
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Coal is formed by the decomposition of large plants and trees buried under the earth about 300 million years ago.this process is called carbonisation
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What happens when coal is heated in air ?state one use of coal
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It produces carbon dioxide gas and heat energy.
uses: 1. It is used as a fuel in homes and industry 2. It is used as a fuel at thermal power plant to generate electricity 3. It is used to make coal gas which is an important industrial fuel 4. It is used to make coke 5. It was used to run steam engines 6. It is used as a source of organic chemicals |
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State the uses of coke
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It is used in the manufacture of steel.it is also used as a fuel because it produces more heat and no smoke
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What are the constituents of coal gas?state one use of coal gas
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It is a mixture of methane, hydrogen with some carbon monoxide.it is used as a fuel in industries.
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What are the major products of petroleum refining?give one use of each petroleum product
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Petroleum gas it is used as a fuel in the form of LPG
petrol it is used as a fuel in light motor vehicles kerosene it is used as a fuel in wick stove |
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What are the advantages of using natural gas as a fuel
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It is a good fuel because it burns easily and produces a lot of heat.it burns with a smokeless flame and cause no air pollution
it is a complete fuel in itself and can be used directly for heating purposes in home and industry it can be supplied to homes and factories through underground pipes thus eliminates additional storage and transport |
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State the various uses of natural gas
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It is used as a domestic and industrial fuel
it is used as a fuel in thermal power station for generating electricity it is being used as fuel in transport vehicles because it is a cheaper fuel and does not cause air pollution it is used as a source of hydrogen gas needed to manufacture fertlisers it is used as a starting material to manufacture chemicals |
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What is CNG?state its one use
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The natural gas when compressed by applying pressure is called compressed natural gas
it is used as a domestic and industrial fuel |
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Where is natural gas found?why is it called clean fuel?
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It is found deep under the crust of the earth alongwith oil above petroleum deposits.it is called clean fuel because it burns without producing smoke and does not cause pollution
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What are the advantages of using LPG as fuel
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It burns easily
it has high calorific value it burns with a smokeless flame and hence cause no pollution it does not produce any poisonous gases on burning it does not leave any residue behind |
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Name any five useful substances which are manufactured from petrochemicals
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Drugs
dyes perfumes insecticides explosives |
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Which material is called black gold?why?
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Petroleum is called the black gold because of its commercial importance and it provides raw materials(petrochemical) to manufacture large number of useful substances eg drugs,dyes etc
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Where and when was the worlds first oil well drilled
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It was drilled in pennsylvania in USA
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Where and when was oil first struck in india
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It was struck in makum in assam
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