1) Explain why alveolar gas has a different composition from air. Atmospheric (external) air contains a high percentage of oxygen and nitrogen whereas alveoli gas contains a lower percentage of oxygen and a higher percentage of carbon dioxide. The differences in composition are due to the fact that gaseous exchange is taking place within the alveoli in the lungs. Oxygen is diffusing from the alveoli into the pulmonary artery and carbon dioxide is diffusing back into the alveoli from the pulmonary
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Oils and gas conservation ‚its relevance in daily life: Oil and gas conservation means their better and more efficient use with regard to economic‚ social or environment costs and benefits resulting minimization of wastage and protection of environment. A very high priority is attached by the government to conservation of petroleum products in view of the need to reduce increasing gap between demand for and supply of oil and petroleum products. Government has initiated various
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1.0 INTRODUCTION British Gas‚ better known as BG T&T is an established company in Trinidad and Tobago. This company supplies natural gas for domestic use and also liquefaction and export. In addition‚ BG T&T is a significant shareholder in the Atlantic LNG plant in Point Fortin‚ Trinidad‚ and has recently acquired the central block upstream operations on land. BG Trinidad & Tobago (BG T&T) has been operating in the region since 1989. It is operator (?) and has 50 per cent equity in the Dolphin
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Orsat Gas Analysis Experiment I. Objectives To analyze the dry exhaust gas (DEG) from a combustion system using the Orsat apparatus. II. Apparatus As shown in figure‚ the Orsat apparatus consists of a water-jacketed 100-m1 burette B connected at its top to a glass manifold M and at its bottom to a leveling bottle L. The glass manifold M is connected to three reagent bulbs called pipettes P1‚ P2 and P3 via three cocks C1‚ C2 and C3. Each tube is filed with its own absorbing chemical solution:
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The Natural Gas Case Introduction * This case is about the negotiation of buying a gas between two parties involved – the plaintiff a German company and the defendant an Austrian partnership. On the 18th of December 1990 the plaintiff faxed the defendant with an offer to buy 700-800 metric tons. Meanwhile Austria responded that the ship will be from US for delivery to Belgium and the price is $376 per tone. Additionally a letter of credit was required‚ since both of the parties haven’t seen
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Gas chromatography (GC) is a chromatography technique where the separation of individual components (analytes) from a sample relies on their differing distribution between a mobile and stationary phase. The mobile phase carries the analytes through the stationary phase. In GC‚ it’s an inert gas (usually helium or nitrogen). The gas must be inert‚ so it won’t react with the sample to give a false reading. The stationary phase is a substance fixed in place to which the sample adsorbs because
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After landing on moon in 1969 with project Apollo 11‚ NASA began discovering the moon with the motto “One small step for man one big step for mankind”. Later‚ the project has been continued until the last Apollo 17 in 1972. When the Apollo project was over‚ humans have learned that the moon is lifeless. It contains no living organisms‚ fossils‚ or native organic compounds. There is no atmosphere on the moon. To continue the mission “following the water” and to try to find the answer for the question
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and ensure it to zero Let By Testing • I ensure the ECV is off • I made sure all appliance is in the off position • Then i get my stop watch to time • I then remove the test nipple screw and put it safe • I then let out the residual gas • Attach the manometer hose to the meter test nipple • manometer is then put on a level surface vertically • cooker lid is in the open position • Open ECV and allow the meniscus to rise to 10 mbar • I then close the ECV • Then time for
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surveys‚ weather studies‚ gas analyses and research of the atmospheres of other planets. They are usually made of glass or plastic‚ and while most are scored for measurement‚ some can measure changes digitally. The single-tube manometer measures only the pressure of a liquid‚ since there is no alternate place to compare gases. A U-shaped manometer essentially pits two different gas pressures against one another‚ and measures the strength of the captured gas. The free-flowing gas is usually air at the
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Data and Conclusions: The purpose of this experiment was to learn how to use distillation and gas chromatography to separate and identify different compounds from a given mixture. There are several kinds of distillation methods. However‚ the method that we used in this experiment was fractional distillation. This method is used when trying to separate two different volatile compounds whose boiling points differ by 40-50°C or more. If the boiling points are too close‚ this method
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