Determine the specific heat, Chemistry

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Q. Determine the specific heat and claculate the total heat transfer?

Ans. If a mug full of coffee has about 350 g of liquid inside, how much heat is lost as it cools from 87oC to 25oC?  Assume that coffee is made completely of water, which has a specific heat of 4.18 J/goC.  

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rounding to 2 significant digits we have

369_Determine the specific heat1.gif

So about 91 kJ of heat were lost as the coffee cooled down.


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