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Essays on enthalpy change

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Hot and Cold
5 pages (1250 words) , Download 1
Lecturer’s Name and Number Date Submitted Experiment on Energy Changes Associated With Acid-Base Reactions Abstract In this experiment, a calorimeter was used to measure the changes in temperature which normally occurs during an acid-base chemical reaction…
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Thermochemistry Hess' law
5 pages (1250 words) , Download 1
Measuring and comparing these three reactions will help verifying Hess’s Law which states that the enthalpy change for any reaction is…
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Chemistry Practice - Bonding energy kinetics

4 pages (1000 words) , Download 1
Potassium is a metal while chlorine is a non-metal. The difference in electronegativity values of potassium and chlorine is high (the electronegativity values of potassium and chlorine are respectively 0.8 and 3.0 (Brown, LeMay and Bursten, 1991). Potassium will have a tendency to form the cation, K+…
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Calorimeter
1 pages (250 words) , Download 1
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It is used for measuring the heat of chemical reactions and heat capacity. Calorimeters identify the scale and rate of production of heat and change into numerical designations that can be used to sufficiently measure the…
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Why standards
6 pages (1500 words) , Download 1
Engineering Standards Abstract What is a standard and why are they so important? Where do standards get used and how vast are their applications? …
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Energy Transfer and Thermodynamics
8 pages (2000 words) , Download 1
This is a law of thermodynamics that states that thermo equilibrium of a system is achieved only when the temperature of the system does not change over time. This law also states that given two systems that are at thermo equilibrium with another system then both of them are at thermo equilibrium with each other.
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Enthalpy of Neutralisation

2 pages (500 words) , Download 1
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Temperature measurements were taken at intervals of 30 seconds and were used to generate graph time against temperature in each case. It was…
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Measuring The Heat of Decomposition of Hydrogen Peroxide
5 pages (1250 words) , Download 1
It can remain stable for several years. To speed up the reaction a catalyst is used. Examples of catalysts that can be used are potassium iodide, catalase (Williams) and iron (III) nitrate. The redox reaction of…
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What Is Thermo-dynamics
13 pages (3250 words) , Download 1
This paper presents thermodynamics which is the aspect of physics which explains the relationship of the changes in heat energy with relation to the work done and the changes observed in other properties of a substance such as a temperature, volume, and pressure…
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Kinetic of the catalytic decomposition of hydrogen peroxide
5 pages (1250 words) , Download 1
By varying the concentration of hydrogen peroxide, investigate the rate of decomposition so ass to determine the nature of chemical reactions hydrogen peroxide with other substances such as metals and other chemical solutions.
By varying the quantity used of manganese (VI)…
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Labs 1,2,3,4,5,6,7
10 pages (2500 words) , Download 1
Assume the mass to be exactly equal to the mass of water. Calculate the normal force (FN) for 300 g, 150 g, and 100 g. Use these values to compute the ratio of the Applied Force (Fapp) to the Nor-mal Force (Fn). Place these values in the rightmost column of Table 1.
What do…
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Thermodynamics
8 pages (2000 words) , Download 1
Water is stirred by a paddle wheel while a current of 8 A flows for 45 min through a resistor placed in the water. One-half of the liquid is evaporated during this…
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Gas turbine engine basics
8 pages (2000 words) , Download 1
GAS TURBINE ENGINE BASICS Introduction This paper discusses basic gas turbine engine operation, with the use of engineering drawings for depicting the engineering concepts explained. A gas turbine involves a combustion engine within which the accelerated gases moving through the engine nozzle is used to provide thrust, which drives the aircraft…
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Natural Gas Boiler Plant
3 pages (750 words) , Download 1
Various steps were undertaken to achieve this, such as stack gas analysis, bomb calorimetry, air combustion, steam and feed water and heat losses. Different individuals…
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Energy Transfer and Thermodynamics

10 pages (2500 words) , Download 1
It states that two systems in thermal equilibrium with a third system are in equilibrium with each other. In other words, if T1, T2, and T3 are the temperatures of three systems, with T1 =…
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Prelab Cooling Tower
3 pages (750 words) , Download 1
Engineers work on transferring heat from the cooling towers into the atmospheric air with the consideration other metrics, for example, cost…
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Jet Propulsion as a Means of Air Travel
15 pages (4417 words)
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The author using Brayton’s Thermodynamic Cycle shows that the Turbofan jet engine of today is the most efficient and cost-effective source of power for long-range air travel. A jet-engined airliner becomes cost-effective at a drivable distance of the flight, assuming a given seat occupancy level…
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Gas Turbine Engine Basics
8 pages (2000 words) , Download 1
The compressor is designed to direct intake air into the combustion chamber at a high velocity, while the combustion chamber is equipped with the fuel nozzles and…
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NMR
1 pages (250 words) , Download 6
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In determining Keto-Enol equilibrium constant, Proton NMR spectroscopy is used to evaluating a number of keto-mixtures. The spin-spin splitting and the chemical shift pattern are employed. The equilibrium constant is affected by…
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The Solvay process for sodium carbonate
7 pages (1750 words) , Download 1
The Solvey process is an important industrial process that is widely used to produce sodium carbonate (Na2CO3) from Sodium chloride and Carbon dioxide under a complex chain of reactions with Ammonia gas(NH3) being produced as an intermediary. The resulting, ammonium carbonate…
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Joule Thompson effect
3 pages (750 words) , Download 1
Outline of Paper Introduction to the historical context of experiment: The relevant discoveries preceded the experiment It became pertinent to do a review on the discoveries that preceded the Joule-Thomson experiment as this would provide the required background knowledge necessary to embark on a work of this magnitude…
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Thermodynamics and Fluids II
2 pages (500 words) , Download 1
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It is assumed that the components of the engine are joined by conduits for easy transportation of working fluid fro exit of one component to the entrance of the next component. It is also assumed that all mass flow and energy are steady so that the steady state configuration…
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THERMODYNAMICS
4 pages (1000 words) , Download 1
Before leaving, the driver checks the pressure of all the tyres using a tyre pressure gauge. The inner volume of each tyre is 30 litres and the indicator on the tyre pressure gauge reads 235kPa (about 34.1 psi). This is the safe operating…
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Introducing Health Science
5 pages (1250 words) , Download 1
Name: Instructor: Task: Date: Question 1 Using statistics from a recent Canadian research that pegged the alcohol limit for a moderate drinker at 14.9 grams, calculate the amount of wine that contains this alcohol limit. Formulae: 1 ml contains 0.789 grams of alcohol CALCULATION: 14.9 0.789 The answer is 18.88 grams or roughly rounded off to 19 grams…
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ASSIGNMENT 2
3 pages (750 words) , Download 1
The crevice and pitting corrosion are both termed localized corrosions from the fact that both occur at specific locations as opposed to completely over surfaces even with large amounts of materials exposure to same environment. A small amount of the surface corrodes with…
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Energy Conversion System
4 pages (1000 words) , Download 1
NORTHUMBRIA UNIVERSITY School of Computing, Engineering & Information Sciences EN0201: Energy Conversion Systems Assignment 1of 1 Assignment weighting: 15% of total unit (Total marks = 50) Learning outcome You are expected to show the understanding of 1. the mathematical principles of model and prototype testing for the solution and analysis of engineering problems…
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Chloroplast: Structure to Function Relation
3 pages (750 words) , Download 1
The chloroplast is the structure that is responsible for the conversion of light energy from the sun into chemical energy (Nelson and Yocum 521-565) stored in the form of organic end products in the plant tissue. …
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Phosgene
4 pages (1000 words) , Download 1
Phosgene is a colorless, non flammable and highly poisonous liquid. It is the most dangerous among the group of lung damaging agents. Phosgene is known by many other names. Some of these are: Carbonic acid dichloride, Carbonic dichloride, carbon oxychloride, Carbonyl chloride, Choloroformyl chloride…
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Refrigeration Laboratory
8 pages (2000 words) , Download 1
This means that, this means the total energy input at the evaporator is the same as the total energy output at the evaporator.
Results from the experiment were…
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Oral Controlled Release System of Propranolol Using Gellan Gum Macrobeads with Magnesium Aluminum Silicate (veegum)
6 pages (1500 words) , Download 1
Ionotropic gelation is based on the ability of polyelectrolytes such as gellan gum to cross link in the presence of counter ions, like Calcium (Ca2+) and Zinc (Zn3+) ions, to form hydrophilic hydrogel beads (gelispheres)…
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Modeling and Control of Three-Phase Gravity Separators in Oil & Gas
5 pages (1250 words) , Download 1
A study targeting mathematic modeling was conducted to provide solutions to control, optimization and design of such facilities. The following paper focuses on a separator that is three- phased…
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The Belinda Energy Project: Ethical and Environmental Considerations
8 pages (2000 words) , Download 1
The objective of this report is to consider the bids received and accepted by the company for the energy project at Belinda in Africa. While the bids are all accepted and equally valid as per the terms of our company, Karlsson, and it is of utmost importance to consider the costs involved and analyze all the bids so as to maximize profitability…
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Thermal Energy Storage

14 pages (3500 words) , Download 1
Because it is natural, it is renewable and is safe to the environment and to man as well. However, much of this type of energy has been left untapped as mankind has heavily relied on…
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Applied Thermodynamics Design Project
8 pages (2000 words) , Download 1
It is important for applications such as unoccupied indoor pools, water reservoirs etc. There have been many equations for calculating the water evaporation of…
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A Study Of Multi-Domains Food Systems
12 pages (3000 words) , Download 1
The paper " A study of multi-domains food systems" describes the existing literature on moisture migration, tries to understand the causes and effects of the same in the case of multi-domain foods or food composed of components having different water content or water activity…
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Chemistry - mechanism and synthesis

9 pages (2250 words) , Download 1
This is assignment S205 06 covering book 10. The questions are included in this paper to conserve brevity and only the answers are posited.
Note to the above diagram:…
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Exam papers
7 pages (1750 words) , Download 1
Unlike the oxidative properties of the ground-state oxygen, singlet oxygen which by nature works in its excited state is capable of degrading molecules through photosensitization. A singlet oxygen is typically produced by a photosensitizer pigment with which such element…
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Chemical equations, enthalpy changes and chemical equilibrium, acid, base and pH, and chemical reactions, chirality, simple organic functional groups and their reactions

3 pages (750 words) , Download 1
It is also used as a treatment for Parkinson’s disease. This molecule contains a chiral carbon atom.
Chiral atom is an atom (mostly carbon)…
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How did major discoveries in physics change the course of chemistry and interpretations of the discoveries

11 pages (2750 words) , Download 1
Yunzheng Jiang PHYS 419 Term Paper Draft Undeniably, numerous technological advancements present today resulted from early discoveries though through critical inquiries of other previous scientists, which yielded to more developments. This is especially true in advancing and challenging what former intellectuals stated irrespective of their different specializations to come up with extremely complicated gadgets, for instance, in the communication field moving from stationary gadgets to hand held and mobile devices…
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Chemical Engineering design of a operation unit

10 pages (2500 words) , Download 1
The process begins with designing and setting up an operation unit for the separation process. After a stipulated start-up time, the unit or…
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Rebort asimant
6 pages (1500 words) , Download 1
The term jet engine describes a reaction engine which discharges a rapid moving jet and, generates a thrust through jet propulsion in accordance to the laws of motion by. Most of jet engines are examples of internal combustion engines. Jet engine is made up of the compressor,…
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Therapeutic Polysaccharides
8 pages (2000 words) , Download 1
The essay “Therapeutic Polysaccharides” will discuss a ubiquitous role of polysaccharides in biological processes and demonstrate just how integral these compounds are in biochemical processes. Polysaccharides have been referred to as the “sleeping giant” in products…
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A sustainable nightclub in London
28 pages (7000 words) , Download 2
This paper describes an approach to management of the Green Club’s project, aimed to build a “green” nightclub in the center of London. It will be completely innovative sustainability concept, offered to young Londoners in attractive, interactive manner…
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Chemical Engineering Dissertaion. Designing a venturi scrubber
24 pages (6000 words) , Download 2
Scrubbed gasses proceed along the involute. The bulk of the liquid is separated and the remainder entrained as the droplets are…
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High Temperature Steam/Water Vapor Oxidation of Ferritic Fe-Cr Alloy for Boiler of Fossil Fueled Power Plant
27 pages (6750 words) , Download 1
This discussion, High-Temperature Steam/Water Vapor Oxidation of Ferritic Fe-Cr Alloy, stresses that anthropogenic sources of green gases like carbon dioxide (CO2), methane, chlorofluorocarbons and nitrous oxide are changing the climate of the world forever. …
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Change Management: Sources of Change and Nature of Changes

9 pages (2250 words) , Download 2
This paper focuses on change management. The sources of change can be categorized into two main criteria; internal and external sources. Lunenburg explained that internal sources are the factors that emerge from within the organization and stimulate a change…
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How Technology Changes and Changed Criminal Law
11 pages (2750 words) , Download 1
This paper emphases that the advent of computer has caused a lot of changes to the law. Though not exhaustive, the aspects of law that have changed indicate that computers have initiated certain areas of the law to evolve while others remain practically unaffected. …
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Change Strategies AND Change Program

5 pages (1250 words) , Download 2
Change is considered as only thing which is constant for the organizations because if organizations fail to deal with the changing environment, their overall survival may be doomed. However, change may not come itself as there may be different forces which can effectively an…
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Educational Change

5 pages (1250 words) , Download 1
In the olden days, education was all about simple mathematics, poems and prayer. The value of education was low, and even the number of…
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Organic Chemistry Intro. to Radical Halogenation, Thermodynamics, Kinetics, Radical Halogenation Cont., Alkyl halides
4 pages (1000 words) , Download 1
Name: Instructor: Class name: Date: Questions and Answers 1. Compare and contrast thermodynamics and kinetics as they pertain to organic transformations. In any chemical reaction there is always a thermodynamic and kinetic aspect feature. In kinetic reaction there is always a constant that is responsible of moving forward the reaction…
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