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Topic: corrrections in a thermodynamic equation?  (Read 2720 times)

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Offline chrisAP

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corrrections in a thermodynamic equation?
« on: November 18, 2008, 10:31:18 PM »
[^ = delta]

final solution formed by 20ml Sol. A + 30ml Sol. B
specific heat of solution is 4.18 J
density is 1.02 g/ml
initial temperature of reactants: 21.4 degrees C
final temperature: 25.3 degrees C

^H=mC^T
^H=(51)(4.18)(3.9)
^H= 831 J (3 sig figs)

the above was calculated for a problem on my prelab. the next problem says, if the calorimeter that was used to measure this reaction has a heat capacity of 8.20 J/degrees C, what is the heat of reaction if you include a correction for the heat absorbed by the container?

Offline propyne

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Re: corrrections in a thermodynamic equation?
« Reply #1 on: November 19, 2008, 12:08:14 AM »
Qgained = Qlost
Qlost= Q(of reaction) + Q(calorimeter)   

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