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Homework Statement
For the problem below I was able to work out part (i) but I am stuck on working out part (ii) I tried using information given but was unsuccessful. Can anyone help me out?
An insulated copper container of mass 0.250 kg contains 0.350 kg water. Both the container and the water are at 25.0 degrees. 0.012 kg ice at 0.0 degrees is added to the container. Eventually the container and contents reach thermal equilibrium at 21.7 degrees.
We know:
Specific Heat of water = 4186 J/Kg Degree
Specific Heat of copper = 387 J/Kg Degree
Latent heat of vaporisation of water = 2.26x10^6 J/Kg
(i) What is the total heat released (in J) by the copper container and the 0.350 kg water as they cool down from 25.0 degress to 21.7 degrees?
(ii) Determine the latent heat of fusion of ice.
Homework Equations
Q=mc[itex]\Delta[/itex]T
Q=mL
The Attempt at a Solution
(i) What is the total heat released (in J) by the copper container and the 0.350 kg water as they cool down from 25.0 degress to 21.7 degrees?
Qw=0.350x4186x(25-21.7) = 4835J
Qcopper = 0.250x387x(25-21.7) = 319J
QT=Qw+Qc = 4835+319 = 5154J