CHEM 1000 Lecture Notes - Calorimetry

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28 Jan 2013
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Q1. Energy Exchange in Calorimetry (Easy)
Two aqueous solutions at room temperature are mixed in a
coffee cup calorimeter. The reaction causes the
temperature of the resulting solution to fall below room
temperature. Which of the following statements is TRUE?
A) Energy is leaving the system during reaction
B) The products have a lower potential energy than the
reactants
C) This type of experiment directly yields Erxn
D) The mixing is endothermic
E) The solution has special properties that enable it to
violate the first and second law of thermodynamics
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