D30068.docx

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29 Jan 2013
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Q5. Temperature Calculations and Conservation
of Energy Law (Medium)
50.0 g of iron has an initial that has an initial
temperature of 225oC and 50.0g of gold that has an
initial temperature of 25.0oC are brought into contact
with one another. Assuming no heat is lost to the
surroundings, what will be the temperature when the
two metals reach thermal equilibrium? The specific
heat capacity of iron=0.449J/goC and the
gold=0.128J/goC.
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