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Topic: finding final temperature  (Read 1780 times)

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Offline chrismb

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finding final temperature
« on: November 03, 2013, 01:48:45 PM »
If 150. grams of iron at 95.0 C is placed in an insulated container containing 500. grams of water at 25.0 C, what will the final temperature be (assuming no heat lost)? (CH2O = 4.18 J/gC, CFe = 0.444 J/gC)

{use 3 significant figures in answer}

Ok so far i've done all the work

150g x 0.444 J/g C x (Tf - 95.0) C = - [ 25.0g x 4.18J/g C x (Tf - 25.0 C]

im just having troubling on how to complete it past here....someone help please

Offline magician4

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Re: finding final temperature
« Reply #1 on: November 03, 2013, 01:58:35 PM »
Quote
150g x 0.444 J/g C x (Tf - 95.0) C = - [ 25.0g x 4.18J/g C x (Tf - 25.0 C]
there's one small but very important error in this equation

correct it

after that , resolve the equation for Tf , and calculate

regards

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