'Exothermic' presentation slideshows

1.15k views • 72 slides

THERMOCHEMISTRY

THERMOCHEMISTRY. HEAT CAPACITY, SPECIFIC HEAT, ENDOTHERMIC/EXOTHERMIC, ENTHALPY, STANDARD ENTHALPIES, CALORIMETERY . INTRO TO THERMOCHEMISTRY. Chemical rxns involve changes in energy Breaking bonds requires energy Forming bonds releases energy

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ENTROPY & FREE ENERGY A guide for A level students

ENTROPY & FREE ENERGY A guide for A level students. 2008 SPECIFICATIONS. KNOCKHARDY PUBLISHING. ENTHALPY CHANGES. INTRODUCTION

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Biology chapter 6 Review

Biology chapter 6 Review. Chapter 6 Chemistry in Biology Objectives and Review . Section 1 Vocabulary: atom (Proton, neutron, electron), element, isotope, compound, covalent bond, molecule, ion, ionic bond, Vander Waals forces (9 words ). Section 1 .

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The Star Life Cycle

The Star Life Cycle. Integrated Science. What is a star?. A mass of gas and plasma that is held together by its own gravity and uses chemical reactions to make its own light. . Where do stars come from?. Stars form from Nebulas. Nebula A cloud of dust, hydrogen, helium, and plasma.

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Unit 5 Whiteboard Review

Unit 5 Whiteboard Review. Identify the fuel in this combustion reaction: H 2 + O 2 ? H 2 O. Hydrogen!. When the system releases energy to its surroundings, the process is __________. Exothermic!. Balance the following combustion equation: C 5 H 12 + O 2 ? H 2 O + CO 2.

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7.3 Exothermic and Endothermic Reactions

7.3 Exothermic and Endothermic Reactions. Review Stuff from 7.1. Chemical reactions involve the breaking of chemical bonds in the reactants and the formation of chemical bonds in the products . Reactants are on the left side Products are on the right side. Law? What law?.

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What is a chemical reaction?

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Temperature and Keq Lesson # 11

Temperature and Keq Lesson # 11. How Does Temperature Change the Keq? The Keq is a mathematical constant that does not change for concentration, volume, and pressure changes. It only changes for temperature . 1. Exothermic Reactions: A + B ? C + energy.

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Lec.4

Lec.4. Chemical equilibrium. Recall. Relation between Kc and Kp. Example 1: calculate the number of moles for the following reaction And determine the relation form between Kp&Kc 1) N 2 O 4 2 NO 2 K p = K c (RT) 2-1 = K c (RT)

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Thermochemical equations

Thermochemical equations. 16.3. 16.3 Thermochemical equations. Thermochemical equation = a balanced chemical equation that includes the physical states of all reactants and products and the enthalpy change (?H). Remember that enthalpy is the heat content of a system at constant pressure.

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382 views • 12 slides

3.1 Matter and Energy

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Chemistry C2 Part three

Chemistry C2 Part three. Revision PowerPoint - Big ideas Chemical reactions collisions and energy . Speeding up chemical reactions. The rate of reaction is the change in the amount of product or reactant per second .

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Problem Explication Group #3 Amber Gipson Erin Key Kelly Lee Amy Ozley

Problem Explication Group #3 Amber Gipson Erin Key Kelly Lee Amy Ozley.

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Problem Explication Amber Gipson Erin Key Kelly Lee Amy Ozley

Problem Explication Amber Gipson Erin Key Kelly Lee Amy Ozley.

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184 views • 6 slides

Bellwork 23

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CHEMICAL CHANGES CHEMICAL CHANGES CAN EITHER BE EXOTHERMIC OR ENDOTHERMIC

CHEMICAL CHANGES CHEMICAL CHANGES CAN EITHER BE EXOTHERMIC OR ENDOTHERMIC EXOTHERMIC: A CHEMICAL CHANGE THAT INVOLVES THE RELEASE OF HEAT. EX: BURNING A MATCH

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2H 2 O ? 2H 2 + O 2 H-O-H + H-O-H ? H-H + H-H + O=O

Bond. kJ/mol. #. required. #. released. H-O. H-H. O=O. 459. 4. 1836. 2H 2 O ? 2H 2 + O 2 H-O-H + H-O-H ? H-H + H-H + O=O. 436. 2. 872. 498. 1. 498. 1836. 1370. 466. 2H 2 O + 466 kJ ? 2H 2 + O 2. Bond. kJ/mol. #. required. #. released. H-H. Cl-Cl. H-Cl.

332 views • 4 slides