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April 26, 2015

Homework Help: Chem. thankss!!!

Posted by Melissa on Friday, November 5, 2010 at 8:50pm.

1.0 mol of water (c=4.184 J/g.oC), 1.0 mol of ethanol (c=2.46 J/g.oC), 1.0 mol of carbon tetrachloride (c=0.861 J/g.oC), and 1.0 mol of ethylene glycol (c=2.42 J/g.oC) at 50oC were each placed into a separate coffee cup calorimeter and the temperature recorded. The temperature of the surroundings was 20oC. After 1 hour the temperature of which substance would have changed by the smallest amount? Assume the rate of heat transfer from the coffee cup to the surroundings is the same in each case.

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