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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9.19 9.20 9.21 Pressure at the tip of anvil is 2.5 × 1011 Pa (a) 0.7 m (b) 0.43 m from steel wire Approximately 0.01 m 260 kN 2.51 × 10–4 m3 Chapter 10 (a) decreases (b) η of gases increases‚ η of liquid decreases with temperature (c) shear strain‚ rate of shear strain (d) conservation of mass‚ Bernoulli’s equation (e) greater. 6.2 × 106 Pa 10.5 m Pressure at that depth in the sea is about 3 × 107 Pa. The structure is suitable since it can withstand far greater pressure or stress. 6.92 ×
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[As you know‚ these laboratory sessions are compulsory course-work. You must attend them. Should you fail to attend either one you will be asked to complete some extra work. This will involve a detailed report and further questions. The simplest strategy is to do the lab.] Notes For the First Year Lecture Course: An Introduction to Fluid Mechanics School of Civil Engineering‚ University of Leeds. Homework: Example sheets: These will be given for each section of the course. Doing these
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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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)k-1k Where‚ P1 and T1 is initial absolute Temperature and absolute Pressure P2 and T2 is Temperature and Pressure after the expansion. Materials and Apparatus: Perfect gas expansion unit Procedure 1. General start up procedure is performed as stated in appendix A. All valve are fully closed 2. The hose is connected from compressive pump to pressurized chamber 3. The compressive pump is switched on and the pressure inside chamber is allowed to increase up to 160kPa.The pump is switched
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Marcet Boiler 1. Abstract This experiment was carried out to determine the relationship between the pressure andthe temperature of saturated steam in equilibrium. Besides that this experiment was alsodone to demonstrate the vapor pressure curve. The market Boiler was used for thisexperiment. When the pressure increases‚ the temperature also increases. Therefore‚ therelationship of pressure and temperature is directly proportional. The derived formulaeand the data were used to calculate the slope
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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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under variety of different conditions‚ such as‚ different amount of drops of enzymes and different temperature of water. The class measured the pressure in the test tube during the reaction of the substance with‚ 1.5 ml of H2O2‚ 1.5ml of H2O and different amounts of enzyme drops‚ to determine how much oxygen gas is produced during the reaction since the pressure of the test tube will get higher as more oxygen gas is accumulated during the reaction. 2) If more drops of the enzyme are added to the
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message: (561-542-5608) Calculations: 1. Write the balanced equation for the reaction conducted in this lab‚ including appropriate phase symbols. Mg(s) + 2HCl(aq) --> H2(g) + MgCl2(aq) 2. Determine the partial pressure of the hydrogen gas collected in the gas collection tube. The partial pressure of the hydrogen gas is 1.07 atm 3. Calculate the moles of hydrogen gas collected. pv=mrt ; n= .0013mol of hydrogen gas 4. If magnesium was the limiting reactant in this lab‚ calculate the theoretical yield
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