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which is carried out at constant pressure. The total ΔS for this process is known to be 75.0 J·K−1·mol−1. For A(l) and A(g), the Cp values are 75.0 J·K−1·mol−1 and 29.0 J·K−1·mol−1, respectively, and are not dependent on temperature. Calculate ΔHvaporization for A(l) at 125°C (its boiling point).

Respuesta :

Answer:

ΔHv = 29861.25 J/mol

Explanation:

A(l) → A(g)

∴ P: at constant

∴ ΔS = 75.0 J/K.mol

∴ T = 125°C = 398.15 K

law's Trouton:

  • ΔS = ΔHv / T.....at T,P constant

⇒ ΔS = 75.0 J/mol.K = ΔHv / ( 398.15 K )

⇒ ΔHv = 75.0 J/mol.K * 398.15 K

⇒ ΔHv = 29861.25 J/mol

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