Thermodynamics, melting, phase change

AI Thread Summary
To calculate the heat required to melt ice at -12°C with a mass of 0.55593125 kg, the correct approach involves using the latent heat of fusion. The initial attempts using Q=mcT were incorrect because they did not account for the phase change from ice to water. After realizing the importance of including the latent heat of fusion in the calculations, the correct answer was achieved. This highlights the necessity of considering both temperature change and phase change in thermodynamic problems. Understanding these concepts is crucial for solving related homework questions effectively.
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Homework Statement


If ice is at(-12) deg c and has a mass of .55593125kg, how much heat is required to melt the ice.


Homework Equations


Q=mcT



The Attempt at a Solution


i tried Q=mc(water)T and Q=mc(ice)T but both were marked wrong. can you show me what I am doing wrong here?
 
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Show the actual numbers you're using.

You did remember the latent heat of fusion, didn't you?
 
ohhh yes. i forgot the latent heat of fusion. i got the correct answer now. thank you for your assistance.
 
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