Restoring Balance LeChâtelier’s Principle and Equilibrium Introduction Chemical equilibrium is a true balancing act. What happens when the balance is disturbed? The purpose of this lab is to observe the effects of concentration and temperature on equilibrium and to visualize how balance can be restored based on LeChâtelier’s Principle. Background Not all chemical reactions proceed to completion‚ that is‚ to give 100% yield of products. In fact‚ most chemical reactions are reversible
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1302969 Group members: Yuan Li Hong‚ Desmond Wong Practical Lecturer: Mr Zoheir Practical Group: 6 Part 1 Title: To determine the coefficient of static friction between two surfaces. Objectives: 1. To determine the relationship between the mass of load and the length of spring. 2. To determine the coefficient of static friction between two surface. Apparatus and materials: 1. Retort stand 2. Spring 3. Slotted masses 200g with hanger 4. Meter rule Setup:
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What keeps the stopper moving in a circle? Purpose: Relate the variables involved in uniform circular motion Hypothesis: I predict that the velocity of the stopper will increase as the radius is shortened. Rubber stopper with a hole PVC tube or wooden spool 1. Measure the mass f the stopper and washer‚ m‚ and record it in the data and observations section. Then‚ prepare the experimental apparatus as shown in figure A. 2. Throughout this experiment‚ you will need to maintain a constant
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** Atom and Introduction to Nuclear physics ** Introduction Alpha-particle scattering 2.1 Experimental set-up ➢ Alpha particle o is a high-energy helium nucleus with 2 protons and 2 neutrons. o has 2 positive charges. ➢ Gold foil was chosen since it has a high atomic mass. Thin gold foil‚ ~10-6m was bombarded by high-energy alpha particles. ➢ Angular deflections/ scattering of alpha particles were measured by observing
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Identity is never static. “No man is an island‚ entire of itself”‚ English poet John Donne once wrote. Nearly four hundred years later‚ in 21st century’s modern society‚ the emotional attachments between individuals have grown even more immense than it ever was. Complemented by the pace of today’s society‚ this complex relationship is further developed. While being influenced by others‚ we undergo psychological changes‚ which will manifest in amendments in
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Economics essay: Examine the concept of market equilibrium and discuss the reasons for and methods of government intervention in markets Market equilibrium is a situation in which the supply of an item is exactly equal to the demand of that item‚ there is no surplus nor shortage. Under the circumstances of market equilibrium‚ prices tend to remain stable. Producers and consumers react differently to changes in price‚ higher prices
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Regents Physics Constant Velocity/ Acceleration Lab 10-3-13 Problem: Graphical Analysis of Constant Velocity and Accelerated Motion. Theory: Gravitational acceleration is constant on Earth g=9.8m/s2 Therefore‚ when the golf ball is dropped‚ the acceleration will be equal to gravitational acceleration agb=9.8m/s2 Given there is no air resistance‚ this means that when the golf ball is dropped from a given distance‚ according to the formulas‚ the golf ball will accelerate
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Market Equilibrium of Crude Oil Gina Brazelton Economics 561 April 17‚ 2012 Dr. Jill Trask Market Equilibrium of Crude Oil Market equilibrium occurs when there is no shortage or surplus of a product‚ therefore‚ buyers and sellers get what they want. When there is a change in either the supply or demand this will eventually adjust to a new equilibrium of price and quantity. Right now‚ industries are not only faced with ever-changing periods of consumer demand but their own production inventory
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(Chemical Equilibrium) 1. Write the equilibrium constant expression‚ Kc‚ for each of the following reactions: a) 2NO(g) + O2(g) ⇄ 2NO2(g) b) The decomposition of solid potassium chlorate to solid potassium chloride and oxygen gas. c) 4HCl(g) + O2(g) ⇄ 2H2O(g) + 2Cl2(g) d) 2NO2(g) + 7H2(g) ⇄ 4H2O(l) + 2NH3(g) e) H2O(g) + C(s) ⇄ CO(g) + H2(g) f) The reduction of solid copper (II) oxide with hydrogen gas to produce copper metal and water at 500oC. 2. The equilibrium constant
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demonstrates the main aspects behind causing inequality between male and female rights in the Arab World. Colp Rubin clearly states based on certified statistical evidence‚ that despite of the basic rights given to females in the Arab region‚ lack in the equilibrium between both genders has still been consistent. She demonstrates her claim by referring to the discriminated political roles given to women in government‚ to the violence and mistreatment caused by peers in the surrounding society‚ and finally in
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