Horse power vs. volt power (TS)Pollution‚ global warming‚ and the price of fuel pose real problems for an auto industry churning out gas vehicles‚ however‚ electric vehicles offer hope for the future. (PS)Most electric vehicles look and perform just like a gas vehicle.(SS) For example‚ the electric-powered Dodge Circuit EV resembles the gas-powered Dodge Challenger.(SS) Both sport the bold look of a muscle car‚ And both have all the standard features such as power windows and doors‚ gps‚ air conditioning
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point of the Isopropyl alcohol was similar‚ even though melting point and boiling point were totally different physical properties each other. When I kept water boiling up to 105˚C with the acetamide‚ it maintained a liquid state‚ not turning into gas. Through this‚ I also could deduce the boiling point of acetamide might be much higher than the Isopropyl alcohol‚ and water. In this experiment‚ handling experiment tools such as capillary tubes and small amount of chemicals was a great challenge
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principle of operation is like that of a steam engine‚ except there is no combustion involved. Liquid nitrogen is pressurized and then vaporized in a heat exchanger by the ambient temperature of the surrounding air. The resulting high – pressure nitrogen gas is fed to the engine converting pressure into mechanical power. The only exhaust is nitrogen. The usage of cryogenic fuels has significant advantage over other fuels. Also‚ factors such as production and storage of nitrogen and pollutants in the exhaust
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TUTORIAL 1 1. Convert the following temperatures to their values on the Fahrenheit and Kelvin scales: (a) the boiling point of liquid hydrogen‚ –252.87°C (b) the temperature of a room at 20°C. 2. A constant-volume gas thermometer is calibrated in dry ice (–80.0°C) and in boiling ethyl alcohol (78.0°C). The respective pressures are 0.900 atm and 1.635 atm. (a) What value of absolute zero does the calibration yield? (b) What pressures would be found at the freezing and boiling points of water
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escape‚ the methanol/unknown vapour pushed out the extra vapour and oxygen gas. When the flask was cooled down‚ the methanol/unknown vapour condensed – this resulted in the increase in mass of the flask when it was weighed after being cooled down. The mass of the condensed vapour is equal to the difference between the initial and final masses of the flask. Due to the assumption that the volatile liquids obey the Ideal Gas Law: PV=nRT‚ where n is equal to the mass of the substance divided by the molar
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atmosphere are perfectly mixed‚ so pure‚ dry air behaves as if it is a single gas with very definite physical properties. Nitrogen gas is a molecule consisting of two nitrogen atoms (N2). It does not easily react with other substances. Soil bacteria do take up very small amounts of nitrogen‚ which can be used by plants‚ but otherwise nitrogen is largely “filler‚” adding inert bulk to the atmosphere. In contrast‚ oxygen gas (O2) is chemically very active‚ combining readily with other elements in the
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DISCUSSION Part A: The effect of pressure head on maximum flow of gas for different size orifices For the orifices having different sizes but located at same level‚ the orifice 1‚ 2‚ 3 and 4 are having sizes of 0.5‚ 0.38‚ 0.28 and 0.1cm respectively. Based on the result obtained‚ the graph of Pressure Head vs. maximum flow rate for Orifice having different size but at the same level at a pressure for 1‚ 2 and 3 bar was plotted. Based on the graph obtained for all three different pressures‚ it
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Ejectors Give Any Suction Pressure Recent tests on multistage ejector systems will simplify your task of designing vacuum-producing equipment for any pressure. F. DUNCAN BERKELEY GRAHAM MANUFACTURING CO.‚ INC.‚ BATAVIA‚ N.Y. B ecause of overlapping performance‚ it’s often a lengthy problem to arrive at the most economical design of an ejector. In practically every new application of high vacuum‚ we find it necessary to investigate thoroughly the many available means of producing vacuum
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yellow-like orange color. As it was diffusing liquid bromine changes its state to gaseous. With an odour given off smelling similar to household bleach. Even though the diffused gas had reached the top of the jar some amount of liquid bromine remained at the bottom of the container. Results: Liquid bromine changed to gas and diffused until the jar was completely filled with gaseous bromine. Discussion: Diffusion is one of the fundamental processes by which material moves. Diffusion is a consequence
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To be issued for all temporary hot work including gas/electric welding and cutting; blowtorches; tar boilers; grinding wheels and cutting discs. Hot work to be carried out only by people trained in use of equipment‚ hazards and precautions to prevent fires. |Permit No: | |Description of work:
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