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Past Exam for CHEM 135 - GEN CHEM FOR ENGINEERS with DeVoe at Maryland (UMD)

Exam Information

Material Type:Exam 2
Professor:DeVoe
Class:CHEM 135 - GEN CHEM FOR ENGINEERS
Subject:Chemistry
University:University of Maryland
Term:Fall 2000
Keywords:
  • Temperature
  • Useful Information
  • No Molecules
  • Isoelectronic
  • Ernest Rutherford
  • Endothermic
  • Maximum Number
  • Determination
  • Calorimeter
  • Concentration
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Sample Document Text

,.. CHEM 133 (Prof. DeVoe) YOUR NAME (printed) _________________ _ E*am 2 Version A October 18, 2000 Circle your section number: 6117 6121 6124 6127 61.28 6131 6137 6141 6144 6145 61.47 61S1 This exam has a total of 100 points. Please make sure you have aliI four pages. Do not H/rite in this space 1-8 ___ /24 9 ___ 110 10-12 ___ /14 13 ___ /10 14 ___ 110 15 ___ /20 16 /6 17 /6 TOTAL _____ 1100 (Possibly) useful information: 1 atm = 760 mmHg = 1.013 25 >< lOS Pa T(K) = t(OC) + 273.15 "C R = 0.08206 L atm / K mol .speed of light = 3.00 X 10 8 m/s Avogadro's number = 6.022 x 10 23 Planck's constant := 6.63 >< 10-- 34 J. s PART I. Eight multiple-choice questions (3 pts each, 24 pts total). Write the letter (A, B, etc.) of the one best answer for each question on the line at the right. 1. A helium-filled balloon has a volume of 2.5 L when the pressure is 790 mmHg .. When the balloon is released, its pressure changes to 550 mmHg but its temperature is unchanged; the ...

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