Chem_208_Lecture_3_BW

Chem_208_Lecture_3_BW - This Week Finishing Through 7.8 PS1...

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1 This Week: Finishing Through 7.8 PS1 Due Friday, 2 PM
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2 The Professional Chemistry Fraternity Info Session on Tuesday at 4:30 in Chem lounge; 7:00 in RPU 220 Wednesday at 2:30 in Chem lounge Thursday at 7:00 in Bethe 240 Friday at 2:30 in Chem lounge For More Info: see our board outside of Baker 119 or Contact Anna Kurt ([email protected] )
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3 Calibration Step Determination of Heat Capacity of Entire Apparatus • Heat of combustion of benzoic acid (C 7 H 6 O 2 ) in 30 atm O 2 : q rxn = - 26.43 kJ/gram printed on bottle • For combustion of 1.346g in 30 atm O 2 , Δ T = 16.58 o C measured • Calculate C for apparatus (bomb, water, stirrer, oxygen….)
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4 The Measurement Calorimeter emptied and loaded with 1.526g of benzene (C 6 H 6 ) + 30 atm O 2 Combustion resulted in Δ T = 29.76 o C. What is the heat released by combustion of benzene in kJ/mol?
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5 Reactions can do work e.g.2KClO 3 (s) 2KCl (s) + 3O 2 (g)
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6 Pressure-Volume Work W = -P ext Δ V
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2NaN 3 (s) 2Na(s) + 3N
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This note was uploaded on 03/29/2009 for the course CHEM 2080 taught by Professor Davis,f during the Spring '07 term at Cornell.

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Chem_208_Lecture_3_BW - This Week Finishing Through 7.8 PS1...

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