the name of NGV. If compare NGV to other quality fuels that are currently in use. One will find that the NGV really stand out from them all in the sense that it preserve environment and is 50% cheaper With it’s quality as gas and pressure as high as 200 Bar or approximately 3000 Pond per square meter‚ to be compress into the different sizes tank according to the suitability on usage. The safety of the tank containing NGV gas is very important‚ each of the tanks has to be according
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the tube. Its height adjusts according to the air pressure on the reservoir. The column of mercury is shorter on a mountaintop as there is less atmosphere to exert a force on the mercury reservoir. On a mountaintop‚ the air pressure is less‚ so the height of mercury it balances in the barometer is shorter than at sea level where there is more air pressure. The pressure of mercury is its weight (force) per unit area. The weight‚ and thus the pressure‚ of the mercury column is directly proportional to
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relationship among the complete pressure and capacity of gas‚ if the temperature is reserved in stable within a closed system. The mathematical expression for Boyles Law is: V=K(1/P) or PV=K (Constant T and n) Where‚ P and V are the pressure and volume of the gas sample respectively. K is a constant and dependent of the temperature (T) and the amount of gas (n‚ moles). The Graph below successfully indicates Boyle’s Law visually: A: Volume Verses Pressure B: Volume Verses 1/P Part
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usually cubic metres (m3)‚ e.g. 200 mg/m3 or using ppm without any reference‚ e.g. 140 ppm Please note Because of the variation of a gas volume with temperature and pressure changes it is necessary to use one of the following alternatives for describing a concentration value: additional specification of gas temperature and pressure values existing during measurement or conversion of the measured concentration value into the corresponding value at standard zero conditions‚ see the following chapter
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slop of the pressure/volume(P/v) diagram‚ near the start‚ in the middle and at the end of the compression. 2. To determine the indicated work/cycle of the compressor from the P/v diagram. Where: Work/cycle=(m.e.p) x (piston-area) x stroke And m.e.p= mean effective pressure= average pressure(i.e stroke of the compressor) 3. To determine the volumetric efficiency of the compressor. A pressure transducer is used so that a potential drop will be created for a change in pressure. A similar
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(rounded to SF= 291 K) 2. 1 atm 1 atm 10 mm 10 mm 2.54 cm 2.54 cm According to the digital barometer our teacher provided‚ the barometric pressure in the lab is 29.77 in Hg‚ which will need to be converted to atmospheric pressure. 760 mm Hg 760 mm Hg 1 cm 1 cm 1 in 1 in 29.77 in Hg x x x = 0.9949 atm Barometric pressure: 756.2 mm Hg or 0.9949 atm 3. Volume of gas collected: 100.0 mL 4. Initial mass of butane lighter: 21.88 g 5. Final mass of butane lighter:
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surface and up to an altitude of about 80 km. 2. The five main components of the atmosphere are nitrogen ‚ oxygen‚ water vapor‚ ozone‚ and the particulates. 3. The cause of atmospheric pressure is exerted equally in all directions up‚ down‚ and sideways. 4. The two types of barometers measure atmospheric pressure ‚ atm ‚ millimeters and or inches of mercury and the millibars mb. Therefore‚ the two barometers are the mercurial and the aneroid. 5. The layer of the atmosphere in which weather occurs
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test is performed to determine the magnitude and rate of volumes decrease that laterally confined soil specimen undergoes when subjected to different vertical pressures. From the measured data‚ the consolidation curve can be plotted. This data is useful in determining the compression index‚ the recompression index and the preconsolidation pressure of the soil. In addition‚ the data obtained can also be used to determine the coefficient of consolidation and the coefficient of secondary compression of
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Temperature‚ T (°C) RESULT Preassure‚ P (bar) | | | | | | Measure slope‚ dT/dP | Calculated slope‚Tvg/hfg | Gauge | Absolute | Increase (°C) | Decrease(°C) | AverageTavg (°C) | AverageTavg (K) | | | 0.1 | 1.1 | 104.0 | 106.6 | 105.30 | 378.45 | - | 0.260 | 0.2 | 1.2 | 107.3 | 109.3 | 108.30 | 381.45 | 0.3 | 0.243 | 0.3 | 1.3 | 109.8 | 111.8 | 110.80 | 383.95 | 0.25 | 0.227 | 0.4 | 1.4 | 112.0 | 113.9 | 112.95 | 386.10 | 0.22 | 0.213 | 0.5 | 1.5 | 114.3 | 115.9 | 115.10
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volume of the football starts to decrease. Boyle’s Law describes how the pressure of the gas tends to decrease as the volume of a gas increases. As the pressure decreases‚ the volume of the gas increases. The bubbles exhaled by the fish grow as it approaches the surface of the ocean. When the fish is exhaling out the air‚ the bubbles tend to become bigger and bigger. As the bubbles start to approach the sea surface‚ less pressure will be put on the bubbles‚ so the volume of the bubbles start to increase
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