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Topic: Can anyone help with this problem.  (Read 2165 times)

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zgns028sng

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Can anyone help with this problem.
« on: September 05, 2006, 12:36:04 PM »
 :-\213.5g of water were heated to a certain temperature and then mixed with 150.0g of water in a calorimeter.  The water in the calorimeter was at a temp of 23.6 degrees celcius.  The final temp of the mixture was 64.3 degrees celcius.  Find the original temp of the hot water.  Assume that the specific heat capacity of water is 4.184 / j/g degrees celcius

Offline sdekivit

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Re: Can anyone help with this problem.
« Reply #1 on: September 05, 2006, 04:07:10 PM »
remember that the energy released by the hot water is taken up by the cold water and that you can equal them ;)

just use:

213.5 * (Tinitial - 64.3) = 150 * (64.3 - 23.6)

--> solve for Tinitial
« Last Edit: September 05, 2006, 04:15:45 PM by sdekivit »

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