winter 08 MWF midterm+2+answers

winter 08 MWF midterm+2+answers - 1 Which exam form do you...

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Unformatted text preview: 1. Which exam form do you have? a) A b) B c) C d) D e) Raise your hand if you are going to mark e so a TA can escort you out of the classroom. 2. For a particular process q = - 17 kJ and w = 21 kJ. Which of the following statements is false? a) Heat flows from the system to the surroundings. b) The system has work done on it by the surroundings. c) E = +4 kJ d) The process is exothermic. e) None of the above is false. 3. Equal mols of cobalt(II) nitrate and francium fluoride react to produce cobalt(II) fluoride and francium nitrate. Which is the limiting reagent? a) cobalt(II) nitrate b) francium fluoride c) francium nitrate d) cobalt(II) fluroride e) Nothing 4. Which of the following processes must exist in equilibrium with the evaporation process when a measurement of vapor pressure is made? a) fusion b) vaporization c) sublimation d) condensation e) boiling 5. Balanced chemical equations imply which of the following? a) Numbers of molecules are conserved in a chemical change. b) Numbers of atoms are conserved in a chemical change. c) Volume is conserved in a chemical change. d) a and b e) b anc c 6. Which of the following do you expect to have the highest ∆ H vap ? a) H 2 O b) NH 3 c) CH 3 C l d) Fe e) These molecules/atoms do not have a measurable ∆ H vap 7. 24.0 g of ethane (C 2 H 6 ) are combusted in the presence of oxygen gas to produce carbon dioxide and water. How many grams of CO 2 are expected? a) 32.8 g b) 14.4 g c) 43.2 g d) 35.1 g e) 70.3 g 8. How many of the following processes would have a negative work flow?...
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This note was uploaded on 02/09/2011 for the course CHEM 1B taught by Professor King during the Spring '08 term at UC Irvine.

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winter 08 MWF midterm+2+answers - 1 Which exam form do you...

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