lecture39_chem110_sas - Chemical Reactions: Thermochemistry...

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Chemical Reactions: Thermochemistry Part 2 CH110 FA10 SAS 1 Final Chance for SCT Credit! Monday, December 6 th by Midnight Prepare for Recitation December 2 nd Homework due November 30 th Quiz due December 2 nd Lecture 37: November 17 th Lecture 38: Nov ember 19 th (Thanksgiving Break) Lecture 39: November 29 th Read: Ch. 4.6,10.5 (Reactions); 5.3 – 5.7, 8.8 (Thermo) HW Preparation: BLB 4: 81ab,83,87; Packet Rxns : 12-18 BLB 10: 28,55,57; 18: 26,61 BLB 5: 4,6,17,29,37,39,41,53,55,63,67ab, 69,73,75,83,85; Packet 5: 1-7 BLB 8: 65a,67ac,92a; 18: 72ab,74; Packet 8: 12-14
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CH110 FA10 SAS 2 By the end of Today’s Lecture you should know: Hess’s Law Thermodynamic cycles Standard enthalpy of reaction Bond energy KEY QUESTIONS: THE BIG PICTURE Chemical Reactions: Thermochemistry Part 2 What is Hess’s Law? How do I determine or predict the enthalpy of a reaction? How does the enthalpy of a reaction relate to the actual chemistry Remember: Energy is stored in molecules. What are the microscopic connections? How do thermodynamic cycles allow me to predict the outcome of unknown reactions? What is the relationship between bond length and bond strength?
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Hess’s Law CH110 FA10 SAS 3 Reason: H is a __________ Bottom line of Hess’s Law: You do not need to measure
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This note was uploaded on 07/16/2011 for the course CHEM 110 taught by Professor Hofmann,brucerob during the Spring '08 term at Pennsylvania State University, University Park.

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lecture39_chem110_sas - Chemical Reactions: Thermochemistry...

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