20080418 Lecture 35 Chapter 19 CPS

# 20080418 Lecture 35 Chapter 19 CPS - When 3 moles of Cl2...

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Response Report Session: 20080418 Class: Winter 2008 CHM 1220/CHM 1225 Sections: 001 Page 1 Class Points Avg: 52.38 out of 100.00 (52.38%) (Includes only students who took assessment) In an experiment, 485 kJ of energy are released. The reaction is 1 A exothermic, q = -485 kJ 89% B exothermic, q = +485 kJ 8% C endothermic, q = -485 kJ 3% D endothermic, q = +485 kJ 1% In an experiment, the products have 78 kJ of energy more than the reactants. 2 A endothermic, q = -78 kJ 1% B endothermic, q = +78 kJ 75% C exothermic, q = -78 kJ 22% D exothermic, q = +78 kJ 1% 2NaCl + F2 --> 2NaF + Cl2; DH=-320 kJ When 3 moles of Cl2 react with NaF, DH = 3 A +1000 kJ 1% B -320 kJ 7% C +320 kJ 15% D -960 kJ 49% E +960 kJ 28% 2NaCl + F2 --> 2NaF + Cl2; DH=-320 kJ

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Unformatted text preview: When 3 moles of Cl2 react with NaF, DH = 4 A +1000 kJ 0% B-320 kJ 1% C +320 kJ 2% D-960 kJ 38% E +960 kJ 60% 4/18/2008 2:11:37 PM Response Report Session: 20080418 Class: Winter 2008 CHM 1220/CHM 1225 Sections: 001 Page 2 Class Points Avg: 52.38 out of 100.00 (52.38%) (Includes only students who took assessment) 2C3H8 --> C6H6 + 5H2; DH=698 kJ. How many mol H2 are released when DH=4188 kJ 5 A 28 11% B 1.1 4% C 6 50% D 5 6% E 30 28% 2C3H8 --> C6H6 + 5H2; DH=698 kJ. How many mol H2 are released when DH=4188 kJ 6 A 28 1% B 1.1 1% C 6 32% D 5 1% E 30 66% 4/18/2008 2:11:37 PM...
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## This note was uploaded on 09/30/2011 for the course CHEM 1220 taught by Professor Barber during the Spring '08 term at Wayne State University.

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20080418 Lecture 35 Chapter 19 CPS - When 3 moles of Cl2...

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