Calculate the vapor pressure of chloroform, CHCl₃(l) ,
At 25°C.The standard free energies of formation of CHCl₃(l) And CHCl₃(g) Are -71.84 and -70.12 kJ.mol^-¹ at 25°C,Respectively.

Question

Calculate the vapor pressure of chloroform, CHCl₃(l), At 25°C.The standard free energies of formation of CHCl₃(l)And CHCl₃(g)Are - 71.84 and - 70.12 kJ . mol ^- ¹ at 25°C,Respectively.

Quizplus · Accepted Answer

The vapor pressure can be calculated using the Gibbs free energy change for the phase transition. ΔG = G(g) - G(l) = 70.12 kJ/mol - 71.84 kJ/mol = -1.72 kJ/mol. Using ΔG = -RT ln(P), where R = 8.314 J/mol·K and T = 298 K, solve for P: P = e^(ΔG/(-RT)) = e^(1720/(8.314*298)) ≈ 0.499 atm.

Calculate the Vapor Pressure of Chloroform, CHCl3(l)

Calculate the Vapor Pressure of Chloroform, CHCl₃(l)