* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Download CHS CHEM Ch6Syl ThermoChemistry2016
Survey
Document related concepts
Reaction progress kinetic analysis wikipedia , lookup
Eigenstate thermalization hypothesis wikipedia , lookup
Physical organic chemistry wikipedia , lookup
Thermodynamics wikipedia , lookup
Heat equation wikipedia , lookup
Thermal conduction wikipedia , lookup
Marcus theory wikipedia , lookup
Heat transfer physics wikipedia , lookup
George S. Hammond wikipedia , lookup
Chemical thermodynamics wikipedia , lookup
Transition state theory wikipedia , lookup
Transcript
UNIT 2: Chapter 6: Thermochemistry DATE(S) 11/2 11/2 11/2 11/7 11/8 11/9, 16 TOPIC AND OBJECTIVE 6.1 Energy and Its Units Define energy, kinetic energy, potential energy, and internal energy. Define the SI unit of energy joule, as well as the common unit of energy calorie. Calculate the kinetic energy of a moving object. (Example 6.1) State the law of conservation of energy. 6.2 Heat of Reaction Define a thermodynamic system and its surroundings. Define heat and heat of reaction. Distinguish between an exothermic process and an endothermic process. 6.3 Enthalpy and Enthalpy Change Define enthalpy and enthalpy of reaction. Explain how the terms enthalpy of reaction and heat of reaction are related. Explain how enthalpy and internal energy are related. 6.4 Thermochemical Equations Define a thermochemical equation. Write a thermochemical equation given pertinent information. (Example 6.2) Learn the two rules for manipulating (reversing and multiplying) thermochemical equations. Manipulate a thermochemical equation using these rules. (Example 6.3) 6.5 Applying Stoichiometry to Heats of Reaction Calculate the heat absorbed or evolved from a reaction given its enthalpy of reaction and the mass of a reactant or product. (Example 6.4) 6.6 Measuring Heats of Reaction Define heat capacity and specific heat. Relate the heat absorbed or evolved to the specific heat, mass, and temperature change. Calculate using this relation between heat and specific heat. (Example 6.5) Define calorimeter. Calculate the enthalpy of reaction from calorimetric data (its temperature change and heat capacity). (Example 6.6) CHS CHEMISTRY [email protected] PAGE(S) Reading Assignment Pg225-228 HOMEWORK Assigned Problems: #42, 87, 88, 89 90 Recommended additional problems: 4,6 Pg228-231 Assigned Problem: 27 Pg231-234 Assigned Problem: # 30 Recommended additional problems 7, 8 Pg234-237 Recommended additional problems #10, 11, 53, 54, 56, Pg237-238 Assigned Problems: # 59, 60 Recommended additional problem: 12! Pg238-242 Assigned Problems: # 65, 66, 67,68, 69, 70, 101, 102, 103, 104, 105, 106, 107, 108, Recommended additional problems: 14, 28, 29, 34, 64, 67!, 97! UNIT 2: Chapter 6: Thermochemistry 11/17, 18 11/22, 23 11/29, 30 & 12/1 12/2 CHS CHEMISTRY [email protected] 6.7 Hess’s Law State Hess’s law of heat summation. Apply Hess’s law to obtain the enthalpy change for one reaction from the enthalpy changes of a number of other reactions. (Example 6.7) 6.8 Standard Enthalpies of Formation Define standard state and reference form. Define standard enthalpy of formation. Calculate the heat of a phase transition using standard enthalpies of formation for the different phases. (Example 6.8) Calculate the heat (enthalpy) of reaction from the standard enthalpies of formation of the substances in the reaction. (Example 6.9) Ch 6 Thermochemistry Review Pg242-245 Assigned Problems: # 71, 72, 73, 4, 75, 76 Recommended additional problems: #33,35!, Pg246-251 Assigned Problems: #38, 39, 77, 78, 79, 80, 81, 82, 85, 86, 111, 112, 113,114 Recommended additional problems: #17,18,19,20,21,83,117!,143!,144! Ch 6 Thermochemistry Test Skills List 1 cal = 4.184 Joules E k 1 2 mv 2 E q w w Fd q mc t E mgh U H H products H reactants Hess’s Law Standard Enthalpies of Formation Table (pg # ) Kinetic energy Internal Energy Law of Conservation of Energy System Endothermic Reaction Enthalpy Change Specific Heat Standard Enthalpy of Formation Potential energy Joule Thermodynamics Surroundings Enthalpy Temperature Change Calorimeter Energy of Phase Change How reverse reactions and moles affect the Enthalpies of formation New Vocabulary energy Chemical Energy Calorie Heat of Reaction Exothermic Reaction Thermochemical Equation Molar Heat Capacity Hess’s Law Important Dates 11/10 11/11 11/21 11/23 11/24 -11/28 Parent Teacher Conference Day Veterans Day – No School Pitt Labs # 1 and 2 Early Dismissal Thanksgiving Break UNIT 2: Chapter 6: Thermochemistry CHS CHEMISTRY [email protected] Chapter 6 Topics and Hints: Energy, thermochemical equations and stoichiometry, calorimetry, Hess’s law, enthalpy of formation, Representations: Thermochemical equations (balanced equation, followed by ∆H value) Energy diagram for reagents and products of a reaction, e.g. Figure 6.8 Dr. Maleckar emphasizes the pure energy portion of the thermos chapter less than what is probably expected (q and work and energy, etc.) She focuses more on the actual calculation of enthalpy change relating to reactions and asks questions that are more similar to the ones she has assigned.