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newconnect.mheducation.com/flow/connect.html work attempts leftC 2 attempts left Check my work Be sure to answer all parts. Two aircraft rivets, one of iron and the other of copper, are placed in a calorimeter that has an initial temperature of 10°C. The data for the metals are as follows: Iron Copper Mass(g) 32.0 15.0 Initial T C) 0.0100.0 cJ/g K) 0.450 0.387 (a) Will heat flow from Fe to Cu or from Cu to Fe? Cu to Fe Fe to Cu (b) To determine the actual final temperature what must be known? iil l the volume of the calorimeter the heat capacity of the calorimeter Prex 10 of 10

Explanation / Answer

a)

Heat always flow from high temperature to low temperature

therefore

Iron is at 0°C, and Copper at 100°C

heat must flow from copper to iron

Cu --> Fe

b)

we require:

-Qlost = Qgain

-Qiron = -Qcopper + -Qcalorimeter

-miron * Cpiron * (Tf-Tiron) = -mcopper * Cpcopper * (Tf-Tcopper) - Ccal*(Tf-Tcopper)

we require the heat cpaacity of calorimeter, CCal

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