09-exam3 - 1. (24) a. 2 In the diagram below to the to the...

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Unformatted text preview: 1. (24) a. 2 In the diagram below to the to the right, helium atoms are represented by unshaded spheres, neon atoms by gray spheres, and argon atoms by black spheres. If the total pressure in the container is 900 mm Hg, what is the parti~ressure of helium? A) 90 mm Hg ~ 180 mm HgC) 270 mm Hg D) 450 mm Hg 0 o O. b. Which of the following is not a ~e function? A) enthalpy heat C) internal energy D) volume o .0. c. Which one of the followin g~ ses will have the high est rate of effusion? A) N02 ~ N20 C) N204 D) N03 SF(" '$ ,..""I"' DI A-r:: Q09/mol d. At what temperature will sulfur hexafluoride molecules have the same average speed as argon atoms at 20C? JGt3 r:. A) -2ZJ(6 B) 73.2C C) 381 C @ 799C e. Which substance in each of the following pairs is expected to have the larger dispersion forces? I BrZ o r I Z '" ""o'o....r~SS ~ A) Br2 in set I and n-butane in set" H H H H B) Br2 in set 1 and isobutane in set II I I I I I I E-t-C----,:::-C- C-H 12 in set I and n-butane in set" I I I I D) 12 in set I and isobutane in set II H H H H H-C- C---C-H n- bu t ane...
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This note was uploaded on 02/12/2011 for the course CHEM 112 taught by Professor Sttaf during the Spring '03 term at Arkansas Pine Bluff.

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09-exam3 - 1. (24) a. 2 In the diagram below to the to the...

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