Latent Heat of Fusion | Physics Explained

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Discussion Overview

The discussion revolves around the concept of latent heat of fusion, specifically in the context of calculating the latent heat for multiple samples and averaging the results. Participants are exploring the application of the relevant formula and addressing issues related to the variables involved in the calculations.

Discussion Character

  • Homework-related
  • Mathematical reasoning

Main Points Raised

  • One participant expresses uncertainty about how to use the formula for latent heat of fusion to find an average of data.
  • Another participant clarifies that the heat of fusion is not related to finding an average, suggesting a misunderstanding of the problem.
  • A participant states their intention to find the latent heat for three cases and average those values, indicating they encountered an error when submitting their answer.
  • There is a request for alternative resources or websites that could assist with the calculations.
  • One participant provides a formula to calculate the latent heat of fusion for each case and suggests averaging the results.
  • A participant expresses confusion regarding the variables in the formula, questioning the mass of water, the specific heat capacity, and other parameters, while attempting to clarify their understanding of the terms involved.

Areas of Agreement / Disagreement

The discussion reflects a lack of consensus, with participants expressing different levels of understanding regarding the application of the formula and the definitions of the variables involved. Some participants are trying to clarify their approach while others are correcting misunderstandings.

Contextual Notes

Participants have not fully resolved the definitions and roles of the variables in the formula, leading to ongoing confusion about the calculations required for the latent heat of fusion.

kuol21
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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".
 
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
 
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
 
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.
 
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?
 

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