PPT-Exothermic and Endothermic Reactions

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. Lesson 1 - Enthalpy Changes in Chemistry. Starter. When a chemical reaction takes place heat may be given out or taken in.. Can you remember the word we use when heat is given out?. Can you remember the word we use when heat is taken in?. . vs. . Exothermic Reactions:. By: Crystal & Caitlin! :D . Endothermic:. Exothermic:. An Exothermic . reaction is the . combustion of Acetone peroxide. . . The Definitions. . Exothermic- . Which one is easier to make happen?. Building a sand castle?. Destroying a sand castle?. How about these?. Wrecking your snowman?. Building as snowman?. And these?. Making a cake?. Making a mess?. What does Baking a cake, building a snow man, or making a sand castle have in common?. Endothermic and Exothermic … 25. Draw 2 vocabulary boxes. EXOTHERMIC. A reaction that releases energy. Gets hotter. Can light up. Reactant energy < Product energy. Ex. Jellyfish, fireflies. Reactants products + energy. REACTIONS. Energy in Reactions. Some chemical reactions . release. heat to the surroundings. These are called . EXO. THERMIC. reactions. Heat . EXITS. the reaction. Some chemical reactions . absorb. 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. INTRODUCTION. All reactions require energy to break bonds in the reactants, and all reactions give off energy when new bonds form to make products. The difference in energy required to break the bonds and to make the new bonds can tell you whether the reaction is endothermic or exothermic. . able to. ……. .:. Must (Grade F): State a definition for. exothermic and endothermic.. Should (Grade C/D): Recognize an exothermic . and endothermic reaction in a graph. Could (Grade B/A): Explain the difference . Agenda. :. Warm up. Intro to the world of chemistry – . Episode 13 – the driving forces of reactions . Notes – Energy changes and Reaction rates . Complete WS: Heat and endothermic / exothermic reactions . 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. Section 20.1. Objectives ~. Compare and contrast exothermic and endothermic chemical reactions. Analyze the energy diagrams for typical chemical reactions. Illustrate the meaning of entropy and trace its role in various processes. . 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.. Do now activity: . State what ‘conservation of mass’ means. GOOD PROGRESS:. Define the terms endothermic and exothermic. Give some examples of endothermic and exothermic reactions. OUTSTANDING PROGRESS:. 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.