How can the volume of water needed to melt an iceberg be determined?

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To determine the volume of water needed to melt an iceberg, the heat transfer equation is applied, incorporating the mass of the iceberg, its specific heat capacity, and the latent heat of fusion. The equilibrium temperature is a critical factor, and the discussion reveals uncertainty in calculating it, with a proposed assumption that it is 0ºC. The melting process involves the iceberg absorbing heat from the surrounding ocean water, which is also at a specific temperature. The challenge lies in accurately defining the equilibrium temperature and the implications for the volume of water required for melting. Clarification on these points is sought to resolve the problem effectively.
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1. An iceberg of mass m_{ice} is melted by the ocean at temperature T_{ocean}. Knowing that the iceberg is at a temperature T_{ice} what was the volume of water needed to melt the iceberg?



2. m_{ice}c_{ice}(0-T_{ice})+m_{ice}L_{f}+m_{ice}c_{ice}(T_{equ}-0)=m_{ocean}c_{ocean}(T_{ocean}-T_{equ})




3. The problem is that I can't find another equation to determine the temperature of equilibrium.
 
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The volume of water needed to melt the iceberg? What's that supposed to mean? In an ideal world, every water molecule in the ocean gives an equal amount of heat to the iceberg.
 
I solved the problem considering that the equilibrium temperature is 0ºC. The iceberg is melted and it lowers the water temperature around it to 0ºC. Anyone has any idea?
 
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