PPT-Exothermic or endothermic?

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. Heat/Energy needs to be…... . added or removed. Heat that is removed is….. Exothermic. system. heat. surroundings. Heat that is added is….. Endothermic. system. heat. surroundings. Endothermic versus Exothermic Example WS. Processes & Reactions. Exothermic. Endothermic. Process. Heat. exiting a substance. Ex: water freezing. Physical change. Heat entering a substance. Ex: water evaporating. Physical. change. Reaction. 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?. Feeling hot, hot, . hot. Thermochemistry. Thermochemistry. – concerned with the changes that occur during a. reaction.. Heat ( ) - that transfers from one object to another because of a. 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. and . Exothermic. Experiment no. 5. Group no. 2. Leader: Tara Faye . Bayas. Members: . Ann Marjory V. . Cariño. Pearly Ruby . Cariaga. Kristine Grace Cortez. Julius Bryan Cruz . Endothermic And Exothermic Reaction. 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…. 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. 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 . By . DR T. . O AKINOLA. PRINCIPLES OF CHEMICAL PREPARATIONS FOR COLD THERAPY AND ENDOTHERMIC REACTIONS. What . is an Endothermic Reaction. You might think of chemical reactions as occurring exclusively in laboratories, but in reality, they occur in the world around us and in our own bodies every day. . 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..