physics-PLEASE ANSWER, it's due today!

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One end of a copper rod is immersed in boiling water at 100 degrees celsius and the other end in an ice-water mixture at 0 degrees celsius. The sides of the rod are insulated. After steady-state conditions have been achieved in the rod, 0.180 kg of ice melts in a certain time interval.
A)For the time interval mentioned in the introduction, find the entropy change of the boiling water?
B)For the time interval mentioned in the introduction, find the entropy change of the ice-water mixture?
C)For the time interval mentioned in the introduction, find the entropy change of the copper rod?
D)For the time interval mentioned in the introduction, find the total entropy change of the entire system?

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