Of A Catalytic

The Atmospheric Ozone Layer
The Atmospheric Ozone Layer
The Atmospheric Ozone Layer The stratospheric ozone layer exists at altitudes between about 10 and 40km depending on latitude, just above the tropopause. Its existence is crucial for life on earth as we know it, because the ozone layer controls the absorption of a portion of the deadly ultraviolet (UV) rays from the sun. UV-A rays, including wavelengths between 320 and 400nm, are not affected by ozone. UV-C rays between 200 and 280nm, are absorbed by the other atmospheric constituents besides oz
INTERNAL-COMBUSTION ENGINE
INTERNAL-COMBUSTION ENGINE
INTERNAL-COMBUSTION ENGINE INTRODUCTION Internal Combustion Engine, a heat engine in which the fuel is burned ( that is, united with oxygen ) within the confining space of the engine itself. This burning process releases large amounts of energy, which are transformed into work through the mechanism of the engine. This type of engine different from the steam engine, which process with an external combustion engine that fuel burned apart from the engine. The principal types of internal combustion
The threat of nuclear war puts enough stress on people that an
The threat of nuclear war puts enough stress on people that an
The threat of nuclear war puts enough stress on people that an accidental nuclear war could be the result. With more and more of the superpowers defences being controlled by complex computers, the chance of a malfunction increases as well. Add this to normal human error and governmental mistakes and you have a recipe for disaster. For this paper I will be describing examples and systems of the United States, as Canada has no nuclear weapons, and the USA's information is more readily available t
HYDROGEN
HYDROGEN
HYDROGEN Hydrogen, symbol H, is reactive, colorless, odorless, and tasteless gaseous element. The atomic number of hydrogen is 1. The element is usually classed in group 1 of the periodic table. Hydrogen was confused with other gases until the a British chemist demonstrated in 1766 that it was evolved by the action of sulfuric acid on metals and also showed at a later date that it was an independent substance that combined with oxygen to form water. The British chemist Joseph Priestley named th
I have within my ideology the belief that any man who stands for nothi
I have within my ideology the belief that any man who stands for nothi
I have within my ideology the belief that any man who stands for nothing, not only could, but would fall for anything. I believe through my transaction with “A Little Cloud” from Dublin, Joyce’s repertoire and mine greatly agree through the various elements he uses to display the general paralysis of Dublin, such as character development, setting, plot, point of view, and especially epiphany as I experienced it first hand. Joyce, a seemingly masterful wordsmith, has developed this story “A Litt
The Rate of the Reaction of Catechol to Benzoquinone Catalyzed by Vary
The Rate of the Reaction of Catechol to Benzoquinone Catalyzed by Vary
The Rate of the Reaction of Catechol to Benzoquinone Catalyzed by Varying Concentrations of Catechol Oxidase as a Function of Time ABSTRACT The rate of the reaction of catechol to benzoquinone was tested using varying concentrations of catechol oxidase. The experiment setup consisted of four different test tubes containing a varying concentration of the enzyme catechol oxidase. Each sample was placed in a spectrophotometer set at 500 nm. Absorbance readings were taken every 15 seconds. The analy
What more must be done to save the planet Earth from pollution
What more must be done to save the planet Earth from pollution
What more must be done to save the planet Earth from pollution? Planet earth is dying: the ozone layer is depleting, global temperatures are rising, polar ice caps are melting, the air has become a dwelling for toxic vapours and the ground is being impregnated with tonnes of harmful waste. In man’s attempt to dominate earth, he is slowly but painfully destroying this planet by a process termed- pollution. As a result, earth needs to be saved from the introduction of harmful chemicals and substan
Acid Rain
Acid Rain
Acid Rain INTRODUCTION: John F. Kennedy once said, “The supreme reality of our time is the vulnerability of our planet.” This vulnerability has never been so obvious as it is when we consider the devastating effect of acid rain. Acid rain destroys entire ecosystems and jeopardizes our health. The destructive power of this silent killer is evident to everyone who visits the Adirondack Mountains of New York State. The issue of acid rain is not just a local problem; the effect of acid rain on the e
Enzymes
Enzymes
Enzymes Enzymes are biological catalysts; they speed up metabolic reactions by lowering energy barriers without being consumed by the reaction. Proteins in quaternary structure form enzymes. The chemical structure of an enzyme is related to its specificity and catalytic activity. Induced fit, cofactors, inhibitors, and specific active sites all affect the specificity and catalytic activity of enzymes. Being a protein, enzymes are affected by changes in conditions of their environment. In an expe
Swimming Pool Chemistry
Swimming Pool Chemistry
Swimming Pool Chemistry Most people still assume that swimming pools are just holes in the ground, filled with water. In reality, there are actually many chemical processes, which occurs in a swimming pool, to keep the water clean and safe. Pathogens such as adenoviruses, Hepatitis A viruses, Shigella and Escherichia coli 0157, which can cause fever, diarrhoea and vomiting, must be eradicated. [3] There are many other chemicals involved in balancing the water as well. [4] Chlorination is the pra
Reducing Numbers of Cars
Reducing Numbers of Cars
Reducing Numbers of Cars Abstract Nowadays, the number of cars in the city is increasing very rapidly day by day. In this paper it is argued that as the numbers of cars are increasing rapidly in the city, pollution is becoming a serious problem. As a solution to this problem the numbers of cars in the city should be minimized. This paper will explain this argument through various researches done on this and some similar topics. This paper also illustrates the problems faced due to the congestion
Acid Rain
Acid Rain
Acid Rain CONTENTS Summary 1. Introduction 1.1 Terms of reference 1.2 Source of information 2. What is Acid Rain? 2.1 The definition of Acid Rain 2.2 How to Measure Acid Rain? 3. What cause Acid Rain? 3.1 History of Acid rain 3.2 Causes of Acid rain 4. What Are Acid Rain's Effects? 4.1 Water 4.2 Soil 4.3 Plant 4.4 Atmosphere 5. What Society Can Do About Acid Deposition ? 5.1 Understand acid deposition's causes and effects 5.2 Clean up smokestacks and exhaust pipes 5.3 Use alternative energy sour
Robert Schumann
Robert Schumann
Robert Schumann Robert Alexander Schumann was born in the small riverside town of Zwickau, Saxony, in 1810.The youngest of five children, Robert Schumann was brought up in comfortable, middle-class respectability. As a child, he apparently exhibited no remarkable abilities. At the age of six, Robert was sent to the local preparatory school, run by Archdeacon Dohner. He had in fact already begun his education, with the young tutor who gave lessons in exchange for board and lodging at the Schumann
Representative Gases Properties of Gases
Representative Gases Properties of Gases
Representative Gases & Properties of Gases Review 1. State the five assumptions of the Kinetic-Molecular Theory of gases. a) Gases consist of large numbers of tiny particles. These particles, usually molecules or atoms, typically occupy a volume about 1000 times larger than occupied by the same number of particles in the liquid or solid state. Thus molecules of gases are much further apart than those of liquids or solids. Most of the volume occupied by a gas is empty space. This accounts for the
THE ROLE CATALYSTS IN CHEMICAL REACTIONS THEIR IMPORTANCE IN INDUSTRY
THE ROLE CATALYSTS IN CHEMICAL REACTIONS THEIR IMPORTANCE IN INDUSTRY
THE ROLE CATALYSTS IN CHEMICAL REACTIONS, THEIR IMPORTANCE IN INDUSTRY, PROBLEMS AND NEW DEVELOPMENTS. A Catalyst is a substance that alters the rate of a reaction. The catalyst remains unchanged at the end of the reaction. The process is called catalysis. In this report I aim going to explain the role of catalysts in chemical reactions and their importance in industry. I will also outline the problems associated with the use of some catalysts and discuss, using appropriate examples, new develop
Seldom does a one work of literature change a society or start it down
Seldom does a one work of literature change a society or start it down
Seldom does a one work of literature change a society or start it down the road to cataclysmic conflict. One such catalytic work is Harriet Beecher Stowe's Uncle Tom's Cabin (1852). It is considered by many, one the most influential American works of fiction ever published. Uncle Tom's Cabin sold more copies than any other previous fiction title. It sold five thousand copies in its first two days, fifty thousand copies in eight weeks, three hundred thousand copies in a year and over a million c
F Scott Fitzgerald was a writer during the Jazz Age that focused on th
F Scott Fitzgerald was a writer during the Jazz Age that focused on th
F. Scott Fitzgerald was a writer during the Jazz Age that focused on the high life of the roaring twenties. Each novel tells a different story about life. One tells about the pleasures of life and the choices people make in their life. Another gives a penetrating criticism of the moral emptiness of wealthy society in the U.S. The last novel tells the story of the general decline of the Americans living in Europe. Fitzgerald novels have deeper moral themes than people seem to understand, they te
Air pollution from automobiles is a major environmental and health pro
Air pollution from automobiles is a major environmental and health pro
Air pollution from automobiles is a major environmental and health problem in many cities across the United States and around the world. Air pollution comes from the comes from the combustion process that leave the engine through the exhaust system and the crankcase. In engines using unleaded gasoline, the compounds in the exhaust are typically hydrocarbons, carbon monoxide, and oxides of nitrogen in diesel engines. The exhaust includes particulates that are related to smoke, and in engines usi
The History of the Automobile
The History of the Automobile
The History of the Automobile The automobile all start when the people had wanted to travel in something that could go faster than the horse. Henry Ford started with the model A car. He worked for years perfecting. The car when it was finished was a car that had no heat, no windshield or power. The engine had about 10-15 horse power and barley had the power to climb over the stones. These cars were built out of wood and didn't last as the people left them out side. All of the steering had to be
Our Ozone Layer
Our Ozone Layer
Our Ozone Layer: Past, Present & Future April 30, 1998 I decided to investigate the environmental issue of the depletion of the ozone. Although I have heard many things about the ozone, and the hole over Antarctica, I wanted to find out more and get some real facts on ozone depletion and what we can do about it. The ozone layer refers to the ozone within the stratosphere, where over 90% of the earth's ozone resides. The ozone layer absorbs 97-99% of the sun's ultraviolet or UV light (The Ozone
Enzymes
Enzymes
Enzymes The structure of the enzyme is mainly dependent on the active site and variable groups. Extreme temperatures or extreme pHs can alter the structure of an enzyme. Enzymes function to lower the activation energy to break the bonds. They achieve this by putting stress and pressure on the bonds or creating a microenvironment for the substrate. Enzymes are regulated by inhibitors or activators and can be inhibited by the products of the reaction, called feedback inhibition. Enzymes are cataly
Platinum
Platinum
Platinum Platinum is a relatively rare, chemically inert, metallic element. It symbol is Pt, atomic number is 78, and its atomic weight is 195.09. Platinum is one of the heaviest substances known. One cubic foot of Platinum weighs 21 times as much as a cubic foot of water. A grayish-white metal, Platinum has a melting point of 1772 degrees C and a realatively high boiling point of 3827 degrees C. It has a high fusing point, is ductile and malleable, expands slightly upon heating, and has high el
Supply and Demand in the Gasoline Market
Supply and Demand in the Gasoline Market
Supply and Demand in the Gasoline Market Supply and Demand in the Gasoline Market The substance known, as gasoline is a mixture of lighter liquid hydrocarbons used chiefly as a fuel for internal-combustion engines. It is produced by the fractional distillation of petroleum; by condensation or adsorption from natural gas; by thermal or catalytic decomposition of petroleum or its fractions; by the hydrogenation of producer gas or coal; or by the polymerization of hydrocarbons of lower molecular we
Robert Schumann
Robert Schumann
Robert Schumann Robert Alexander Schumann was born in the small riverside town of Zwickau, Saxony, in 1810.The youngest of five children, Robert Schumann was brought up in comfortable, middle-class respectability. As a child, he apparently exhibited no remarkable abilities. At the age of six, Robert was sent to the local preparatory school, run by Archdeacon Dohner. He had in fact already begun his education, with the young tutor who gave lessons in exchange for board and lodging at the Schumann
Asymmetric Epoxidation of Dihydronaphthalene with a Synthesized Jacobs
Asymmetric Epoxidation of Dihydronaphthalene with a Synthesized Jacobs
Asymmetric Epoxidation of Dihydronaphthalene with a Synthesized Jacobsen's Catalyst Justin Lindsey 12/08/96 Chem 250 GG Professor Tim Hoyt TA: Andrea Egans Abstract. 1,2 diaminocyclohexane was reacted with L-(+)-tartaric acid to yield (R,R)-1,2-diaminocyclohexane mono-(+)-tartrate salt. The tartrate salt was then reacted with potassium carbonate and 3,5-di-tert-butylsalicylaldehyde to yield (R,R)-N,N'-Bis(3,5-di-tert-butylsalicylidene)-1,2-cyclohexanediamine, which was then reacted with Mn(OAc)2
Catalytic Converters
Catalytic Converters
Catalytic Converters Notice when a vehicle drives by nowadays, that it is so much quieter than those loud oldies that pour out the blue smoke. Ever wonder just what is underneath a vehicle that makes the new ones so much cleaner. It is called a catalytic converter. The main function of a catalytic converter is to decrease pollution emitted from a vehicles exhaust. The concept behind this is to add a catalyst and force a reaction between the automobile's exhaust and oxygen in the converter. To se
The Ozone Layer
The Ozone Layer
The Ozone Layer In environmental science the green house effect is a common term for the role water vapor; carbon dioxide and ozone play in keeping the earth’s surface warmer than it would normally be. The atmosphere is primarily transparent to infrared radiation from the sun, which is mostly absorbed by the earth’s surface. The earth being much cooler than the sun, remits radiation most strongly at infrared wavelengths. Water vapor, carbon dioxide and ozone then absorb much of this radiation an
The Role Catalysts In Chemical Reactions Their Importance In Industry
The Role Catalysts In Chemical Reactions Their Importance In Industry
The Role Catalysts In Chemical Reactions, Their Importance In Industry, Problems and New Developments OXFORD AND CAMBRIDGE SCHOOLS EXAMINATION BOARD. General Certificate Examination - Advanced Level Chemistry (Salters') - Paper 3 mock. ROBERT TAYLOR U6JW. A Catalyst is a substance that alters the rate of a reaction. The catalyst remains unchanged at the end of the reaction. The process is called catalysis. In this report I aim going to explain the role of catalysts in chemical reactions and thei
Depletion Of The Ozone Layer
Depletion Of The Ozone Layer
Depletion Of The Ozone Layer The ozone layer diminishes more each year. As the area of polar ozone depletion (commonly called the ozone hole) gets larger, additional ultraviolet rays are allowed to pass through. These rays cause cancer, cataracts, and lowered immunity to diseases.1 What causes the depletion of the ozone layer? In 1970, Crutzen first showed that nitrogen oxides produced by decaying nitrous oxide from soil-borne microbes react catalytically with ozone hastening its depletion. His
Internal Combustion Engines
Internal Combustion Engines
Internal Combustion Engines Introduction Internal Combustion Engine, a heat engine in which the fuel is burned ( that is, united with oxygen ) within the confining space of the engine itself. This burning process releases large amounts of energy, which are transformed into work through the mechanism of the engine. This type of engine different from the steam engine, which process with an external combustion engine that fuel burned apart from the engine. The principal types of internal combustion
Malaysian Economic Policy and FDI
Malaysian Economic Policy and FDI
Malaysian Economic Policy and FDI. BACKGROUND AND COUNTRY ATTRACTIVENESS. Malaysia is the second fastest growing economy in the South East Asian region with an average Gross National Product (GNP) growth of eight-plus percent per year in the last seven years. Since independence in 1957, Malaysia has moved from an agriculturally based economy to a more diversified and export oriented one. The Malaysian market is fairly openly oriented, with tariffs only averaging approximately fifteen percent and
Chapter 12 Interpenetration of International National Systems
Chapter 12 Interpenetration of International National Systems
Chapter 12: Interpenetration of International National Systems: International Protection of Human Rights by States By: Rebecca, Olimpia and Danielle ABSTRACT There are two sections mentioned in this chapter, section A- the Spread of State Constitutions in the Liberal Model and section B- Human Rights Treaties within States' Legal and Political Orders. The first section describes the constitutions supported by liberal political foundation and often describes the adoption of human rights and cons