First the total volume of gas that is to be stored needs to be calculated. From the mass balance it is known that 30.92 kmol of methane can be expected every hour. This correlates to 742.0 kmol/day. The ideal gas law will be used‚ with a compressibility factor‚ Z‚ to account for departure for un-idealality. An operating temperature of 50 will be assumed‚ as this is the highest feasible ambient temperature that can be expected. Also assume that the pump or compressor used to transport the methane
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are ideal‚ however‚ this does not exist in reality. a. State the conditions under which gases deviate from ideal behaviour and explain why the deviations occur. [4] __________________________________________________________________ __________________________________________________________________ __________________________________________________________________ __________________________________________________________________ b. Sketch a graph of PV versus P showing the curves for an ideal gas
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it is to determine its molecular weight. In order to determine the molecular weight of a particular substance which in this experiment’s case is a volatile liquid‚ the need to convert the liquid into a gas arises. The relation among the pressure‚ volume‚ temperature and the number of moles of a gas will be an important key in the conclusion of its molecular weight. However‚ in the process of vaporization‚ there is a possibility that some of the vaporized liquid will escape the flask and will be replaced
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theory is that gas particles are always in motion‚ like the other states of matter. But they are different in that they undergo random translational movement. In solids‚ the particles mainly experience vibrational motion and in liquids they mainly vibrate and rotate‚ with some translational motion. Gas particles move rapidly in straight lines‚ unless acted upon by another particle or the walls of a container. This continuous contact with the container leads to our understanding of gas pressure‚ the
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The kinetic theory of gases describes a gas as a large number of small particles (atoms or molecules)‚ all of which are in constant‚ random motion. The rapidly moving particles constantly collide with each other and with the walls of the container. Kinetic theory explains macroscopic properties of gases‚ such as pressure‚ temperature‚ or volume‚ by considering their molecular composition and motion. Essentially‚ the theory posits that pressure is due not to static repulsion between molecules‚ as
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Effusion: escape of gas from a container to a region of vacuum Gas Pressure P= Force/area Force: Newton or kg x m/s2 Pressure: Pascal or N/m2 Standard atm pressure P= hdg H: height‚ d: density; g: 9.80665 m/s2 1 atm* = 101‚325 Pa = 760 mmHg* = 760 torr* = 1.01325 bar = 14.7 psi barometer: measure atmospheric pressure Monometer: measure pressures other then atm pressure Gas Laws Boyles law: P at constatnt T is iversely prop to V P1V1=P2V2 EX:Calculate the volume of a sample of gas at 5.75 atm if
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of the volume occupied by a gas is empty space. This accounts for the lower density of gases compared to liquids and solids‚ and the fact that gases are easily compressible.<br><br>b) The particles of a gas are in constant motion‚ moving rapidly in straight lines in all directions‚ and thus passes kinetic energy. The kinetic energy of particles overcomes
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Fundamental of Engineering Calculation 1. Determine the following unit conversions to SI units: a. Density value of 60 lbft3 to kgm3‚ Ans: 961.1 kg/m3 b. Energy value of 1.7 ×103Btu to kJ‚ Ans: 1.8 x 103 kJ c. Enthalpy value of 2475 BtulbtokJkg‚ Ans: 5756 kJ/kg d. Pressure value of 14.69 psig to kPa‚ Ans: 201.88 kPa e. Viscosity value of 20 cp to Pa∙s‚ Ans: 2 x 10-2 Pa∙s Table of Conversion Factor 1 lb | 0.454 kg |
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Three things are usually required for a chemical explosion: a chemical reaction that occurs very rapidly‚ a large increase in gas pressure‚ and a confined-reaction vessel in which the pressure of the gaseous products can increase to a point that the gases break violently out of the container. In this chemistry and physics science fair project‚ you will use the combustion of ethanol to provide energy for a small explosion. The chemical equation that describes the combustion of ethanol is shown below
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THIS FILE DOWNLOADED FROM THE IB NOTES SITE: http://ibnotes.tripod.com/ TOPIC 2— MECHANICS FOUNDATIONS: • • • Displacement— A measured distance in a given direction— tells us not only the distance of an object from a particular reference point‚ but also the direction from the reference point— is a vector. Velocity— Is speed in a given direction‚ and is also a vector. Acceleration— is the rate of change of velocity in a given direction (velocity/time). The unit in SI is metres per second
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