of the amounts of different pollutants in the exhaust of diesel and petrol engines. FORMATION OF NOX AND CONTROL METHODS: The main source of NOx in diesel engine emissions is the oxidation of the nitrogen in the air at the high temperatures in the cylinder during combustion. As the reaction mixture cools during the expansion stroke and exhaust blowdown‚ the reactions of NO freeze and NO is left in concentrations much higher than its equilibrium concentration. The following reactions are responsible
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OBJECTIVE: The experiment was carried out to investigate the effects of the increase in the enzyme concentration on the rate of reaction. By using self investigative and experimental skills‚ the experiment was done in order to determine how the rate of reaction will be altered‚ whether it will increase‚ decrease or remain constant when the different concentration of enzymes added. INTRODUCTION: Enzymes are produced naturally in plant‚ animal‚ and microbial cell. There are thousands of different
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zinc cost $2.86/kg. Experimental Procedure. Three nails were ascertained and then weighed to the nearest 0.0001 grams. A 100 mL graduated cylinder and a 600 mL beaker were then submerged underwater. While this took place the graduated cylinder was placed upside down in the beaker. The two items were then removed from the water‚ and the graduated cylinder was clamped upside down in the beaker. A rubber stopper with two holes in it was then placed in a 125 mL Erlenmeyer flask. A rubber tube was
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description explains to the general homeowner the structure‚ assembly‚ and operating principle of the foam fire extinguisher. Fire extinguishers come in many sizes depending on the preference of the buyer. Foam fire extinguishers consist of a metal cylinder filled with an aqueous film forming foam usually under pressure of some form of non-flammable gas. A siphon tube directs the foam up through an assembly consisting of a handle and operating lever‚ which is secured during any period of non-use by
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1M= 12 ml DW+3ml sucrose sol. 0.2M= 9 ml DW+6 ml sucrose sol. 0.3M= 6 ml DW+9 ml sucrose sol. 0.4M= 3 ml DW+12 ml sucrose sol. 0.5M= 0 ml DW+15 ml sucrose sol. ▪ Using a cork borer‚ prepare 12 potato cylinders‚ and place them in an Erlenmeyer flask stopper ▪ Meanwhile‚ label 12 boiling tubes and place the
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operation is low. A water cooling system is divided into two separate systems: one for cooling the cylinder jackets‚ cylinder heads and turbo-blowers; the other for piston cooling. Jacket Cooling System The cylinder jacket cooling water after leaving the engine passes to a sea-water-circulated cooler and then into the jacket-water circulating pumps. It is then pumped around the cylinder jackets‚ cylinder heads and turboblowers. The jacket cooling system is a closed circuit. Water passing from the
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mL/drop. If a graduated cylinder is not available there is another way of adding more of the solution. The disposable pipet can transfer 0.5mL of the solution to the chemical reaction. When comparing a 10mL graduated cylinder‚ a 100mL beaker‚ and a 50mL graduated cylinder‚ the most precision peace of glass wear would be the 10 mL graduated cylinder with the true volume of water (calculated)‚ class average‚ and uncertainties being 9.7896 +/- 0.05mL. The 50mL graduated cylinder comes in second place
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Marketing Analysis on Nepal Gas Industries P (LTD) Presented by: Submitted to: Mr.Rajan Thapa Ayushma Shrestha Supriya Thapa Ajish Kayastha Pritisma Rimal word count: 4108 Acknowledgment We the students of Islington College would firstly like to show our gratitude towards our teacher Mr. Rajan Thapa and London metropolitan university for giving us the opportunity to work on this project. We have learned a lot about the Nepali marketing anomalies
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water. * Fill the 50 cm3 measuring cylinder with water. Invert it over the trough of water‚ with the open end under the surface of the water in the bowl and with the end of the rubber tubing in the measuring cylinder. Clamp in place. * Measure 2 cm3 of hydrogen peroxide into the 2 cm3 syringe. Put the syringe in place in the bung of the flask but do not push the plunger straight away. * Check the rubber tube is safely in the measuring cylinder. Push the plunger on the syringe and immediately
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00 mL of diluted bleach (from step 2) to the reaction flask. Using a 100-mL graduated cylinder‚ add about 15 mL of distilled or deionized water to the reaction flask. Used a 100-mL graduated cylinder‚ add about 20 mL of 10% potassium iodide solution to the reaction flask. This 10% KI solution should be clear‚ and not yellow. Pour about 2 mL of starch solution in a 10-mL graduated cylinder and place the cylinder next to the reaction flask. This starch solution will be added to the flask later.
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