What is L in the Entropy of Fusion Equation?

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The discussion clarifies that in the entropy of fusion equation, L represents the latent heat of fusion. This equation, as referenced in "Phase Transformations in Metals and Alloys," relates the change in entropy (δS) to the latent heat (L) and the melting temperature (Tm). Understanding L is crucial for calculating the entropy change during phase transitions. The conversation also includes links to additional resources for further exploration of latent heat concepts. Overall, the focus remains on defining L within the context of the entropy of fusion.
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In the book, "Phase Transformations in Metals and Alloys" by D.E. Porter and K.E. Easterling on pg. 11, it says the entropy of fusion equation is

\deltaS= \deltaH/Tm=L/Tm

but what is L?
 
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