Latent Heat of Fusion

kuol21

Please see the attached Word file.

Attached Files

Physics Help.doc (25.0 KB, 12 views)

HallsofIvy

You say "I am not real sure exactly how to use it [the formula for latent heat of fusion] to find the average of some data." What exactly are you trying to find? Heat of fusion has nothing to do with "finding an average".

kuol21

Well I just need to find the latent heat of all 3 of them, and then just average them all together. I thought I plugged everything in right, but when I tried to submit my answer it said that it was wrong. I just need to know where to plug everything in at.
Thanks

kuol21

Or maybe, another website I could go to that would help me with this. I have tried some, but they didn't work for me.
Thanks

HallsofIvy

Okay, so you really have two problems: first use "Mw*Cw*(Tw-T) = Mi*Ci*(T-Ti)+L*Mi" to find the Latent Head of Fusion in each of the three cases, then add those values and divide by 3.

kuol21

Well i guess my real problem is what is the mass of water. I know the volume (4 cups). I don't know what Cw is. I think Tw is temp of water. I think T is the final Temperater. Mi is I assume Mass of the ice. Not sure what Ci is. Again I believe that Tis the final Temperature and Ti is the temp of the ice. L is the Latent heat and Mi is the mass of ice again. Is that correct?