formulas relating the stresses in the walls of the cylinder and the gage pressure p in the fluid they contain. In the case of a cylindrical vessel of inside radius r and thickness t‚ we obtained the following expression for the hoop stress H and the longitudinal stress L. Mohr’s circle provides an alternative method‚ based on simple geometric considerations‚ for the analysis of the transformation of plane stress. Thin-walled pressure vessels provide an important application
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alternative approach to understanding the behavior of a gas is to begin with the atomic theory‚ which states that all substances are composed of a large number of very small particles (molecules or atoms). In principle‚ the observable properties of gas (pressure‚ volume‚ temperature) are the consequence of the actions of the molecules making up the gas. The Kinetic Molecular Theory of Gases begins with five postulates that describe the behavior of molecules in a gas. These postulates are based upon some
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better customer relationship. Barrett thought that with this changes the company would increase its sales. 2. Of the environmental pressures for changes discussed in this chapter-fashion mandates‚ geopolitical‚ declining markets‚ hyper competition‚ and corporate reputation – which ones were experienced by Intel? One of the sub categories of the Geopolitical pressures‚ the Technological force for change was experienced by Intel‚ because the environment (costumers) wanted to be more globally connected
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* condition of the pipe/equipment under consideration; * configuration of the connection; * code/statutory requirements; * operating conditions; * technical capabilities of the drilling equipment under the operating conditions (pressure‚ temperature‚ nature of product); * related welding problems; * economic aspects; * environmental/pollution aspects. If hot-tapping is to be applied under conditions approaching the technical or operational limits as defined in this
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Chemistry June Exam Notes Quantities in Chemical Reactions Molecular and formula mass o The mass of one unit of a compound (a molecule or a formula unit) o The sum of the mass of all the atoms in a compound o With knowledge of the mass of each individual atom‚ the percentage composition by mass can be determined The Mole (mol) o A counting unit‚ one mole refers to 6.02 x 1023 particles of any given substance o Known as Avogadro’s Constant and given the symbol NA Molar Mass o The
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volume is changed to 6 liters what is the resulting pressure? 2. A sample of gas is confined to 30ml at a pressure of 6 atmospheres. When the pressure is changed to 3liters‚ what is the resulting pressure? 3. A gas occupies 30 L. When the gas is heated from 50C to 100C‚ what is the final volume? 4. In a lab‚ Neon vapor occupied a volume of 1 liter at STP‚ the volume was changed to 4 liter and the temperature climbed to 25C‚ what was the final pressure? 5. Originally a gas occupied 600ml at 22 C what
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Boyle’s Law - Solutions 1) If I have 5.6 liters of gas in a piston at a pressure of 1.5 atm and compress the gas until its volume is 4.8 L‚ what will the new pressure inside the piston be? P1V1 = P2V2 (1.5 atm)(5.6 L) = (x)(4.8 L) x = 1.8 atm 2) I have added 15 L of air to a balloon at sea level (1.0 atm). If I take the balloon with me to Denver‚ where the air pressure is 0.85 atm‚ what will the new volume of the balloon be? P1V1 = P2V2 (1.0 atm)(15 L) = (0.85 atm)(x) x = 18
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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 is clear that different
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Gases have neither definite shape or volume 1) volume changes with pressure 2) volume changes with temperature 3) gases are miscible 4) gases are generally MUCH less dense than liquids 2. Atmospheric pressure 1 atm = 760 torr (mm of Hg) F= ma F = force m = mass a = acceleration P = F/A - ma/A P = pressure A = area 1 Pa (Pascal) = 1kg/m-s2 : 1 kg per meter-second
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Experience There comes a time in each and every human being life when they sacrifice their values and beliefs under the pressure of circumstances or people in order to get accepted by the society. “Salvation” by Langston Hughes and “Shooting an Elephant” by George Orwell are both based on an incident where they had to sacrifice their belief under the pressure of the people around them. The main similarity is that both the narrators went through a situation in their life‚ where
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