Now that we have **ΔH˚ _{rxn} and ΔS˚_{rxn}**, we can now solve for

The given temperature is **200 K**.

$\overline{){\mathbf{\Delta G}}{{\mathbf{\xb0}}}_{{\mathbf{rxn}}}{\mathbf{=}}{\mathbf{\Delta H}}{{\mathbf{\xb0}}}_{{\mathbf{rxn}}}{\mathbf{-}}{\mathbf{T\Delta S}}{{\mathbf{\xb0}}}_{{\mathbf{rxn}}}}$

For ammonia (NH_{3}), the enthalpy of fusion is 5.65 kJ/mol and the entropy of fusion is 28.9 J/K•mol.

a. Will NH_{3}(s) spontaneously melt at 200. K?

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