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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digital gas permeameter). In addition‚ the gas flow expressed by the Darcy’s equation which relates volumetric flow and pressure drop with the properties of the fluid and media. The permeability is the production capacity of hydrocarbon reservoirs because it measure of how a reservoir fluid moves through the interconnected rock pores. It is usually measured at a confining pressure of about 300 to 400 psi on both horizontal and vertical core plugs. Permeability information play a role in determining
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KODAK PEST Political US copyright law requires all photo shops to refrain from printing or releasing digital images taken by professional photographers without a copyright release (2005; 2005). The company operates in different countries around the world therefore it needs to comply with those countries regulations for example‚ taxation policy and employment laws. The company has to take into account the stability of the government in countries where it operates to try and minimize political
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Martin | Bottle Rockets | Table of Contents This extended investigation serves to examine and evaluate the physical forces that affect the flight of a bottle rocket. This will be accomplished by altering the water levels and the level of air pressure (psi) within the rocket will be altered‚ and tested‚ to further understand the mechanics of bottle rockets. Introduction Rocket flight has long been at the forefront of the human race’s exploration of our universe. This undeniable fact makes it
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at a constant pressure and (b) at constant temperature. (c) What is the temperature at the end of the process in (a)? (d) What is the pressure at the end of process in (b)? (e) Show both processes in the p-V plane. Problem 2: The temperature of an ideal gas at an initial pressure p1 and volume V1 is increased at constant volume until the pressure is doubled. The gas is then expanded isothermally until the pressure drops to its original value‚ where it is compressed at constant pressure until the volume
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ratio as follows: 1 H2(g) to 2 e- Reduction (at the cathode) (1) 1 O2(g) to 4 e- Oxidation (at the anode) (2) The moles of electrons can be expressed as a rearrangement of the Ideal Gas Equation: Ne = PV/RT (3) Where P = pressure in atm‚ V = volume in L‚ R = Gas Constant of 0.08206 atm mol-1 K-1 and T = temperature in Kelvin The actual electronic charge of water will be calculated as follows: e- = it/NeN x the stoichiometric ratio (1) or (2) above Where
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H2O/ (±0.05°C) 18‚0 18‚5 19‚0 Temperature of H2O/ (±0.05K) 291‚2 291‚7 292‚2 101‚40 101‚40 101‚40 Higher Water Level (±0.05cm) 21‚5 24‚5 28‚5 Lower Water Level (±0.05cm) 12‚5 11‚0 13‚5 Pressure of Atmosphere/ (±0.005kPa) * The temperature is converted to Kelvin from Celsius for the significance of this lab. ! Qualitative Observation ! I. Bubbles that vary in sizes form from the copper (Cu) coiled magnesium (Mg) travel upwards
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design‚ properties and functioning. Effect of various factors like seal balance‚ face pressure‚ temperature and lubrication on performance of seal and probable causes of seal leakage with their corrective action has also been described. Mechanical seals arrest the leak from shaft where it comes out of the casing. They work satisfactorily to seals almost any liquids‚ operate under full vacuum to 80 Bar pressure and temperature from 100 to 840oC. It can handle shaft speeds up to 3600 RPM and special
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has just had a new Point of Sale system input which meant we had to train 150 staff over two days which‚ as you can imagine‚ was highly pressured giving the short turnaround. Can you give an example of when you have been put in a similar high pressure situation and how did you deal with it? 9/ What does confidentiality mean to you? 10/ What does equal opportunities mean to you? N.B. If there is time‚ invite the candidate to ask any questions they may have about the role and organisation
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Boyle’s law‚ Pascal’s law‚ and Archimedes’ law. Boyle’s Law states that under conditions of constant temperature and quantity‚ there is an inverse relationship between the volume and pressure for an ideal gas. Pascal’s Law states that if pressure is applied to a non-flowing fluid in a container‚ then that pressure is transmitted equally in all directions within the container. Archimedes’ principles is an upward force on an object immersed in a fluid (a liquid or a gas)‚ enabling it to float or
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