HS1103- Engineering chemistry - I KINGS COLLEGE OF ENGINEERING Department of Science and Humanities Sub. Code: HS1103 Sem/Year: I / I Sub. Name: Engg.Chemistry-I UNIT – I – WATER TREATMENT PROCESS: PART – A ( 2 Marks) 1. Define hardness of water. 2. Distinguish between carbonate hardness and noncarbonate hardness. 3. Draw the structure of EDTA. What happens when EDTA is added to hard water? 4. Define alkalinity. 5. Why is water softened before using in boiler? 6. What is meant
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SAVE OUR ENVIRONMENT FROM ENVIRONMENT POLLUTION.Ladies and GentlemanOf course all of us known what is the environment. Environment is combination between physic condition including nature energy source situation like land water mineral with plant andanimals which grow up on the ground and in the ocean with institusional including humancreation like decision how to use that the physic environment.After hearing the meaning we can take a conclusion that environment is very important to our life‚ but
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Save the ailing Earth from vehicular pollution Environmental pollution is one of the most serious problems facing humanity and other life forms on our planet today. Since the rise of the advancement of awkward prepositional phrasing technology‚ pollution had already started its harm as well; awkward phrasing from the dropping of the first atomic bomb‚ which results to land‚ water‚ and air pollution‚ to the industrialized world that pollutes the entire earth. People had been attempting to stop
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reduction and recycling activities can make a difference. Pollution is the introduction of substances or energy into the environment‚ resulting in deleterious effects of such a nature as to endanger human health‚ harm living resources and ecosystems‚ and impair or interfere with amenities and other legitimate uses of the environment.[1] The major forms of pollution include: If just 25% of U.S. families used 10 fewer plastic bags a month‚ we would save over 2.5 BILLION bags a year. On the average‚ the
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Vehicles are the major source of air pollution in the urban areas. Vehicular exhaust‚ a by-product of fuel combustion contains potentially lethal chemical compounds such as carbon monoxide‚ oxides of nitrogen and sulphur and unburnt hydro carbons. Vehicular pollution traces its source to fossil fuels that are burnt in mobile sources (all categories of motorized vehicles). During the past few years‚ various steps have been taken to reduce vehicular emissions and its effect is evident
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Vehicles on the roads contribute to air pollution in major way. Most of the vehicle plying on road are fuelled by petrol and diesel emitting pollutants like Ozone gas‚ Nitrogen Oxides (NO)‚ particulate matter‚ soot smog‚ carbon monoxide (CO)‚ sulphur dioxide (SO2) etc These emissions not only pollute the environment‚ but also pose variety of health risks for people. Pollution is the main reason behind skin cancers‚ asthma‚ bronchitis‚ and other respiratory disorders. Even newborn children can
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volt‚ 50 Hz AC through overhead catenary. The metro has an average daily ridership of over a million commuters‚[3] and has carried over a billion commuters in seven years since its inception. The concept of a mass rapid transit for Delhi first emerged from a traffic and travel characteristics study carried out in the city in 1969.[8] Over the next several years‚ many official committees by a variety of government departments were commissioned to examine issues related to technology‚ route alignment and
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And people trying to save the world‚ with that of the market and environment-friendly products are today than ever before is not surprising. Buying and using environmentally friendly products to make your part to help save the world for a very good way‚ in fact‚ it’s your overall strategy in conjunction with such products whenever possible to use for a very good idea. The more people that is environment-friendly products for the traditional diet is to the goal of saving the world likelier to succeed
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The realistic tone of ’Save Us From’ seems all too familiar to those who have spent a night driving through an unknown area on the long stretch of interstate. Constantly glancing down at the gas gauge‚ we’ll guess how much farther it is till the next gas station; the next oasis of life amongst the dark‚ impersonal night. This poem by Roo Borson highlights our efforts to seek comfort and beauty in the unnatural. "Save us from night‚ from bleak open highways without end‚ and the fluorescent oases
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Pollution: A Menace to the World With every tick of the clock‚ changes of all sorts take place in all the corners of the world. They happen almost simultaneously with split second apart from each other. Looking back‚ is this still the very same planet on which are ancestors set their feet? Has man abused nature so much that the face of the earth has totally changed? In the course of our progress‚ humanity‚ as a whole‚ gradually forgets the responsibility of protecting mother
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