PPT-Endothermic and Exothermic Reactions

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. (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. (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 21. Web Lecture 21. Class Lecture 17 – Tuesday 3/19/2013 . Processes & Reactions. Exothermic. Endothermic. Process. Heat. exiting a substance. Ex: water freezing. Physical change. Heat entering a substance. Ex: water evaporating. Physical. change. Reaction. Chapter 5. Tiers 1,2 & 3. TIER 1:REMEMBER. DEFINE:. Energy . Joule. Temperature. Heat. Calorimetry. Calorimeter. Specific heat capacity . Endothermic reactions. Exothermic reactions. Standard enthalpy change of reaction. 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?. 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.  . 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. 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. (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 21. Web Lecture 21. Class Lecture 17 – Tuesday 3/19/2013 . (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 21. Web Lecture 21. Class Lecture 17 . – . Tuesday. 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. . 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.. Add the new notes to your . table of contents. , and then turn to the next clean page and set up your title and date. Tape the two slides into your INB flat down, directly under your title - they do not need to flip up. 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 .