Practice Exam 1 Blank 2003

Practice Exam 1 Blank 2003 - Exam 1 Chem. 1B 2003 1. The...

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Exam 1 Chem. 1B 2003 1 1. The fusion of water corresponds to the following phase change. H 2 O ( s ) —> H 2 O ( l ) a) (4 pts) Is the fusion of water endothermic or exothermic? b) (4 pts) For water, is H fusion less than, equal to or greater than H vaporization ? Circle the correct answer. H fus < H vap H fus = H vap H fus > H vap 2. (4 pts) Dissolving of ammonium chloride in water lowers the temperature of the system. Circle the correct answer for the change in enthalpy for the dissolving of ammonium chloride. H < 0 H > 0 H = 0 3. a) (4 pts) Write the balanced reaction that corresponds to the heat of formation, H f o , of ethanol, C 2 H 5 OH ( l ). b) (4 pts) Write the balanced reaction that corresponds to the heat of formation, H f o , of aluminum oxide. 4. (10 pts) SO 2 reacts with Cl 2 according to the following equation. S O 2 (g) + Cl 2 (g) —> SO 2 Cl 2 (g)
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This note was uploaded on 08/06/2008 for the course CHEM 1BL taught by Professor Davis during the Spring '08 term at UCSB.

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Practice Exam 1 Blank 2003 - Exam 1 Chem. 1B 2003 1. The...

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