CHM 096 TUTORIAL 2 (Chemical Equilibrium) Jan 2013 1. Write the equilibrium constant expression‚ Kc‚ for each of the following reactions: a) b) c) d) e) f) 2NO(g) + O2(g) ⇄ 2NO2(g) The decomposition of solid potassium chlorate to solid potassium chloride and oxygen gas. 4HCl(g) + O2(g) ⇄ 2H2O(g) + 2Cl2(g) 2NO2(g) + 7H2(g) ⇄ 4H2O(l) + 2NH3(g) H2O(g) + C(s) ⇄ CO(g) + H2(g) The reduction of solid copper (II) oxide with hydrogen gas to produce copper metal and water at o 500 C. 2H2(g) + O2(g)
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In this experiment‚ equilibrium will be examines in the reaction beteween the iron (III) ion and the thiocyanate ion: Fe3+ (aq) + SCN- (aq) ------ FeSCN2+ (aq) The FeSCN2+ complex ion has a blood red color while the iron and the thiocyanate ion are colorless. Therefore‚ the shift in the reaction can followed by noting a change in the intensity of the clood red color‚ which indicates a change in the concentration of the complex ion FeSCN2+. If the reaction shifts to the right‚ the blood red color
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Experiment 1: Study of Solubility Equilibrium Data Treatment and Analysis Section 1: Solubility Product Constant Temperature (˚C) | Volume of NaOH used (mL) | | | | Titration 1 | Titration 2 | Average | 28 | 12.7 | 12.8 | 12.75 | 9 | 10.5 | 10.5 | 10.5 | 19 | 11.3 | 11.2 | 11.25 | 40 | 16.2 | 16.2 | 16.2 | 50 | 22.8 | 22.9 | 22.85 | Table 1: The volume of NaOH used in the titration at various temperatures. No. of moles of KHC4H4O6 = 1.45 g ÷ 188.177g/mol = 7.71 x 10-3mol
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Equilibrium In your text (Chang‚ 6th Ed) : Ch. 15 Chemical Equilibrium‚ esp. Section 15.3 Purpose: The Law of Mass Action will be examined via a series of samples using the same reaction‚ but different stating concentrations. The equilibrium constant‚ K‚ for each reaction will be calculated‚ demonstrating that K for a given reaction at a fixed temperature is a constant‚ independent of starting concentrations. Background: For a general reaction aA + bB ↔ cC + dD‚ the Law of Mass Action
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SPECIAL SENSES AUDITION & EQUILIBRIUM Chapter 15 HEARING • Textbook: Pages 570-579 • Review Questions: #19-23 EQUILIBRIUM • Textbook: Pages 580-583 • Review Questions: #24-25‚ 29 THE EAR – AUDITION & EQUILIBRIUM • Outer‚ Middle‚ Inner – Outer + middle: hearing structures – Inner: hearing + equilibrium structures • Audition – sound vibrations move fluids to stimulate hearing receptors • Equilibrium – head movements disturb fluids surrounding equilibrium receptors Figure 15.24a Structure of
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vn/Home/business/other/25850/ The Principle of Market Equilibrium The Principle of Market Equilibrium is the proposition that markets always move toward equilibrium‚ a situation in which no opportunities for individuals to better off themselves remains. Specifically‚ a properly competitive market reaches equilibrium when a good or service has an equilibrium price tag‚ at which level the quantity demanded and supplied are balanced (called equilibrium quantity). In an economic graph‚ Market Equilibrium is illustrated
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THERMAL EQUILIBRIUM AND TEMPERATURE Two systems are said to be in thermal equilibrium with each other‚ if they are at the same temperature. ZEROTH LAW OF THERMODYNAMICS It states that if two systems A and B are in thermal equilibrium with a third system C‚ then A and B must be in thermal equilibrium with each other. Fig. 1.01 shows two systems A and B separated by an adiabatic wall (a wall which does not allow hear flow).The two systems are placed in contact
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Equilibrium Kurt Wimmer’s film Equilibrium (2002) is set in color. It tells a story about how suppressing emotions eliminates war‚ and any books‚ art‚ or music is forbidden. Those who are caught being a sense offender has committed a crime punishable by death. The film demonstrates the true source of man’s inhumanity to man. The internal struggle within the characters throughout the film such as with the main character Cleric John Preston (Christian Bale)‚ contributes to the theme of the Truth of
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Market Equilibrium June 24‚ 2010 Market Equilibrium In this paper the concept of market equilibrium process will be explained and also it will explicate the real word experience relate to equilibrium. Demand and supply are the tools which can help us for better understanding of how individual markets work. With understanding of demand and supply‚ we can show how the decisions of buyers of goods or services interact with the decisions of sellers to determine the equilibrium (McConnell‚
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February 25‚ 2013 Lab: Equilibrium of Forces Purpose/Objective: The objective of this lab was to test the first condition of equilibrium for a set of concurrent coplanar forces‚ prove Lami’s Theorem‚ and to determine an unknown mass using rules of equilibrium. Procedure: In the lab‚ we wanted to find at what angles three separate weights would create a net zero force on a force table so that the ring holding the weights was exactly centered in the middle
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