We’re being asked to calculate the ΔS_{fus} and ΔS_{vap} for Na.

We can calculate the entropy (ΔS) using the following equation:

$\overline{){\mathbf{\u2206}}{\mathbf{S}}{\mathbf{=}}\frac{\mathbf{\u2206}\mathbf{H}}{\mathbf{T}}}$

ΔS = entropy, J/mol•K

ΔH = enthalpy, J

T = temperature, K

Calculate ΔS_{fus} and ΔS_{vap} for Na.

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