PPT-Endothermic Reaction Investigation –

Ammonium Chloride Water WALT Explain what an endothermic reaction is and the factors that affect an Endothermic reaction Exothermic Endothermic Chemical reactions where HEAT Is transferred to the surroundings. (CRE) is the field that studies the rates and mechanisms of chemical reactions and the design of the reactors in which they take place.. Lecture. 19. Today’s. . lecture. Gas Phase Reactions. Trends and Optimums. Enthalpy. Unit . 11. Learning Objective. You should be able to . define and calculate the enthalpy . of a reaction.. You should be able to . identify. whether a reaction is . endothermic or exothermic .  . 60 grams . 75 grams . 135 grams . 270 grams . Exothermic . vs. Endothermic . Exothermic. Reaction that . transfers energy to the surroundings. More energy . is . released. when a bond . forms than is used to break bonds. Chapter 16 page 500. A. . ThermoChemistry. Introduction. Every chemical reaction causes a change in energy. Endothermic or exothermic. Thermochemistry – study of the transfer of energy as heat that happens during chemical reaction and physical changes. First Law of Thermodynamics . Energy. Many types of energy .  must obey . law of conservation of energy. Energy cannot be created or destroyed, it can only change forms. energy . – capacity to do work . Enthalpy Change and Exothermic and Endothermic Reactions. OBJECTIVES. Demonstrate an understanding of the term enthalpy change,. Δ. H. Construct simple enthalpy level diagrams showing the enthalpy change. Ectotherms. Rely mainly on external energy sources.. Endotherms. - Rely heavily on metabolic energy. Homeotherms. . maintain a relatively constant internal environment.. Poikilotherms. (= . heterotherms. Energy, Rates, and Equilibrium. Fundamentals of General, Organic, and Biological Chemistry. 7th Edition. Chapter 7 Lecture. © 2013 Pearson Education, Inc.. Julie Klare. Gwinnett Technical College. McMurry, Ballantine, Hoeger, Peterson. Oxidation Reactions. Exothermic vs Endothermic. Exothermic. Endothermic. A chemical reaction that gives off energy.. The reactants have more energy than is needed to form the products so they release it.. Success is the result of preparation, hard work and learning from failure. Describe the difference between an exothermic & . an endothermic . reaction. State the different methods of heat transfer & an example of each. . reactions. Performing different measurements to examine which reactions release or consume heat.. Endothermic. and . exothermic. . reactions. Performing different measurements to examine which reactions release or consume heat.. Step 1:. Energy must be . SUPPLIED. to break . bonds.. Step 2:. Energy is . RELEASED. when new bonds are . made.. A . reaction is . EXOTHERMIC. if more energy is RELEASED then . SUPPLIED (. hotter. Boiling water. Rusting. Evaporation . Decomposing . Baking. Freezing . Warm Up 8.1: Determine if the following is chemical or physical- . answers. Boiling water-. physical. Rusting. - chemical. Evaporation -. By majd Khalid and Mohammed. The difference. exothermic. Exothermic substances are substances that release energy in the form of heat causing the temperature of the surroundings to increase thus generating a positive change in temperature.