What Factors Affect Chemical Equilibrium? Introduction: In investigation 14‚ “What Factors Affect Chemical Equilibrium?”‚ the purpose was to find out which reagents caused a change in the chemical equilibrium. A deep red color was formed when Iron Nitrate [Fe(NO3)3 (aq)] was mixed with water and Ammonium Thiocyanate [NH4NCS (aq)]. The product of these two reactants was Iron Thiocyanate(FeNCS). After different trials of mixing the given reagents
Premium Sodium Reagent Product
Chemical Equilibrium ------------------------------------------------- ------------------------------------------------- RESULTS AND DISCUSSION A. Iron-Silver Equilibrium In studying equilibrium between iron and silver‚ 0.10 M FeSO4 and 0.10 M AgNO3 were used. The balanced equation for the reaction is: FeSO4 (aq) + 2 AgNO3 (aq) ↔ Fe(NO3)2 (aq) + Ag2SO4 (s) It has a net equation of: Fe2+(aq) + Ag+(aq) ↔ Fe3+(aq) + Ag(s) This part of the experiment
Premium Chemical reaction Chemistry
CHEMICAL EQUILIBRIUM I. Introduction In a chemical reaction‚ when reactants are mixed together in a reaction vessel‚ the whole of the reactants do not get converted into products. After some time‚ there will come a point when a fixed amount of reactants will exist in harmony with a fixed amount of products; neither amount will change anymore. This state is called chemical equilibrium (Birk‚ 1994; Jones‚ 1987; LeMay‚ 2002). There are three characteristics of a system in chemical equilibrium: a
Premium Chemical reaction Chemical equilibrium Chemistry
Name Date Class CHAPTER 18 REVIEW Chemical Equilibrium SECTION 18-1 SHORT ANSWER 1. Answer the following questions in the space provided. Silver chromate dissolves in water according to the following equation: → 2Agϩ(aq) ϩ CrO42Ϫ(aq) Ag2CrO4(s) ← Which of these correctly represents the equilibrium expression for the above equation? 2[Agϩ] ϩ [CrO 42Ϫ] [Agϩ]2[CrO42Ϫ] [Ag2CrO4] (a) ᎏᎏ (b) ᎏ ᎏ (c) ᎏ ᎏ 1 Ag2CrO4 [Agϩ]2[CrO42Ϫ] [Agϩ]2[CrO42Ϫ] (d) ᎏᎏ 2[Ag2CrO4]
Premium Chemical reaction Chemistry Thermodynamics
Chemical Equilibrium Lab Report Aim: The aim of the lab “Chemical Equilibrium” is to observe the effects of changes in concentrations of products and reactants on the position of the equilibrium of given chemical reactions. Background Information: We are going to use our knowledge of the Le Chatelier’s principle in order to observe this experiment. The principle states that the equilibrium will shift in the direction that will minimize the effects of the change. This lab consists of two
Premium Chemical reaction Change Chemistry
CHM 096 TUTORIAL 2 (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
Premium Chemical equilibrium
growth). This concept could not have come into existence if it wasn’t for the freely available energy resources (thought to be limitless). However‚ M. Hubbert’s prediction that oil reserves behave in a bell curve and that the world’s oil production will peak and drop exponentially‚ underlines Georgescu-Roegen’s point that natural resources are indeed limited. M. Solow‚ acknowledged the laws of entropy (1997‚ p268)‚ but neglected its relevance by stating that “these laws have no substantial consequences
Premium Entropy Thermodynamics Sustainability
5.2.2 Enthalpy and Entropy For 2013-2014 S for melting vs. boiling Discuss How do chemists work out whether a reaction will happen or not? There are various ways including equilibrium constants‚ standard electrode potentials and enthalpy values. But how are these related? There is a more fundamental concept which links all these together. Remember? Enthalpy is a measure of heat energy and ΔH is the enthalpy change which we studied at AS. Questions 1. Which sign for ΔH would
Premium Entropy Energy Enthalpy
McGraw-Hill Week 6-7 (Chapter 8) ENTROPY KHAIRUL FADZLI BIN SAMAT Faculty of Manufacturing Engineering Universiti Teknikal Malaysia Melaka Copyright © The McGraw-Hill Companies‚ Inc. Permission required for reproduction or display. WHAT IS ENTROPY? Boltzmann relation A pure crystalline substance at absolute zero temperature is in perfect order‚ and its entropy is zero (the third law of thermodynamics). The level of molecular disorder (entropy) of a substance increases as it melts
Premium Thermodynamics Entropy Temperature
Living Do you think everything in your life are abiding or not? Entropy is all about unstable things that always changing. According to the arrow of time‚ KC. Cole give the explanation for entropy that “Entropy is the natural order of things in the universe‚ there is event a precise measure of the amount of disorder” (Pg.221). Due to that‚ we can say that entropy is part of life and nature. Going forward is how entropy works. Like time only go through‚ newer go back and restart again.
Premium Entropy Life Money