Activity C03: Heat of Fusion for Ice (Temperature Sensor) |Concept |DataStudio |ScienceWorkshop (Mac) |ScienceWorkshop (Win) | |Phase change |C03 Heat of Fusion.DS |C03 Heat of Fusion |C03_ICET.SWS | |Equipment Needed |Qty |Equipment Needed |Qty | |Temperature
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________ Name: Loren B. Matulac Date : November 09‚ 2013 Yr. & Section: IV- Perseverance Teacher: Mrs. Pacita J. Yapsangco “Magnetic Field of a Coil” Experiment 2.5 I. Objectives: To produce a strong magnetic field just by looping the wire into coils II. Materials: 6 V or 9 V batteries 50 cm of bare 12- gauge copper wire Stiff cardboard and scissors Wooden dowel (about 15 cm long x 4 cm
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Study of Recovery of Waste Heat From the Exhaust of Automotive Engine K. Wojciechowski1‚ J. Merkisz2‚ P. Fuć2‚ P. Lijewski2‚ M.Schmidt1 1 Faculty of Materials Science and Ceramics AGH University of Science and Technology‚ Al. Mickiewicza 30‚ 30-059 Cracow‚ Poland 2 Institute of Combustion Engines and Transportation‚ Poznan University of Technology‚ Piotrowo 3‚ 60-965‚ Poznan‚ Poland e-mail: gcwojcie@cyf-kr.edu.pl‚ phone: (+48)12-61-73-442 Abstract Automotive engines reject a considerable amount of
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blue color starts to fade After heating it is completely white – color has faded – and particles are smaller due to the stirring Calculations of Trial 1: Molar Mass of H2O = 2 x (1.01) + 16.00 = 18.02gmol1- How many moles of H2O evaporated Trial 1: 0.72g±0.04g/18.02gmol1- = 0.03995… ≈ 0.040mol±6.25% = 0.040mol±0.003mol Molar Mass of CuSO4 Cu: 63.55 gmol1- S=32.07 gmol1- O x 4= (16.00) x 4=64.00 gmol1- CuSO4= 159.62 gmol1- Moles of anhydrous part (CuSO4) 1.35g±0.02g/159.62 gmol1-=0
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The Ka and Molar Mass of a Monoprotic Weak Acid Chemistry Lab 152 Professor: James Giles November 7‚ 2012 Abstract: The purpose of this experiment was to determine the pKa‚ Ka‚ and molar mass of an unknown acid (#14). The pKa was found to be 3.88‚ the Ka was found to be 1.318 x 10 -4‚ and the molar mass was found to be 171.9 g/mol. Introduction Acids differ considerable as to their strength. The difference between weak and
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LESSON 3: MOLAR VOLUME QUESTIONS 1. Calculate the density of the least dense gas‚ hydrogen‚ at 25⁰C and 101.3kPa. [0.083g/L] 2. Calculate the density of the densest gas‚ uranium (VI) fluoride (UF6) at 70⁰C and 25.0kPa. [3.09 g/L] 3. An unknown monoatomic gas X has a density of 5.37g/L at 25⁰C and 101.3kPa. Calculate the molar mass of the gas and determine its identity. [ 131.028g/mol; Xe] 4. Calculate the density of ammonia gas in grams per litre at 18⁰C and 100.4kPa. [0.706g/L] SCH3U0 Gases
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Using a Dumas method‚ you are asked to identify the unknown pure liquid by comparing the molar masses of the given possible substances (ethanol‚ methanol‚ isopropanol‚ acetone). Introduction Dumas Method allows us to measure the molar mass of the substance‚ using the Ideal Gas Law. The Ideal Gas Law‚ PV=nRT‚ explains the behaviour of the gases that are near 100kPa and in the room temperature. This equation shows the product of the pressure(P) and volume(V) equals to the product of the number of moles(n)
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Physical Chemistry CHM2330 Experiment F- Raoult ’s Law Experiment By: Sanah Assaad Student Number: 5267864 Partner: Jihad Arafa T.A: Didier University of Ottawa March 25‚ 2010 Objective: The purpose of this experiment is to study the total vapour pressure of ideal or non-ideal mixtures of two volatile liquids as a function of chemical composition. Introduction: For ideal mixtures of volatile liquids the vapour pressure of any given mixture may be obtained by applying Raoult
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entropy of the system .If a compression or expansion of a gas takes place with no flow of heat energy either into or out of the gas - the process is said to be isentropic or adiabatic. The isentropic (adiabatic) process can be expressed with the Ideal Gas Law as: p / ρk = constant where k = cp / cv - the ratio of specific heats - the ratio of specific heat at constant pressure - cp - to the specific heat at constant volume - cv The isentropic or adiabatic process can also be expressed as
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overall heat transfer coefficient on the outer surface of the covered pipe is 10 W/m2.K. if the velocity of the steam is 10 m/s‚ at what point along the pipe will the steam begin condensing and what distance will be required for the steam to reach a mean temperature of 100 oC? Question 2: Consider a horizontal‚ thin walled circular tube of diameter D = 0.025 m submerge in a container of n-octadecane (paraffin)‚ which is used to store thermal energy. As hot water flows through the tube‚ heat is
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