The change in entropy of a mass m of a solid substance which has a latent heat of fusion LF and melts at a temperature T is
A)LFT/m
B)mLF ln(T)
C)mLFT
D)mLF/T
E)LF/mT

Name: The change in entropy of a mass m of a solid substance which has a latent heat of fusion LF and melts at a temperature T is A)LFT/m B)mLF ln(T) C)mLFT D)mLF/T E)LF/mT
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Question

Quizplus · Accepted Answer

The change in entropy (ΔS) during a phase change is given by the formula ΔS = Q/T, where Q is the heat absorbed or released. For melting, Q = mLF, so ΔS = mLF/T.

The Change in Entropy of a Mass M of a Solid