1. The problem statement, all variables and given/known data A 3.50-kg block of iron initially at 8.00 × 10^2 K is placed on top of a 6.25-kg block of copper initially at 4.00 × 10^2 K. Assume the blocks are thermally insulated from their surroundings but not from each other and that they constitute a closed system. How much energy is transferred thermally from the iron to the copper as the two blocks come to thermal equilibrium? 2. Relevant equations heat capacity=amount of energy transferred thermally (J)/resulting change in temperature specific heat capacity (c) =amount of energy required to raise 1 kg of a certain material by 1 degree Kelvin (J/K*kg) c of copper is 385, c of iron is 449 3. The attempt at a solution Thermal equilibrium would be (400+800)/2=600. So during this process the copper would be raised 200 K. Using the specific heat capacity of copper 385 J/K*kg, I found that it would be 2406.25 J to raise 6.25 kgs of it by 1 K. To Raise 200 K it would be (2406.25)(200)=481250 J. This is incorrect, however. What am I missing?