Q2. Calculate the work of adhesion of water on four solids, where the equilibrium contact angles are 30°, 60°, 120°, and
Posted: Sun May 22, 2022 4:09 pm
- Q2 Calculate The Work Of Adhesion Of Water On Four Solids Where The Equilibrium Contact Angles Are 30 60 120 And 1 (27.33 KiB) Viewed 14 times
- Q2 Calculate The Work Of Adhesion Of Water On Four Solids Where The Equilibrium Contact Angles Are 30 60 120 And 2 (94.93 KiB) Viewed 14 times
Consider the reaction H2 + F2 22HF at standard pressure and temperature, when both reactants are in their electronic ground states. (a) Derive the expression for the standard reaction Gibbs energy A,Gº and the reaction equilibrium constant K from the molar Gibbs free energies for the reaction above. Show how the total molecular partition functions of reactants and products enter into the expression. (b) Calculate the standard reaction Gibbs energy using the data below, where Ovib is the vibrational temperature, qtranslation is the translational partition function value, or is the rotational temperature, and Do is the bond dissociation energy. State whether this reaction is an enthalpy or entropy driven reaction. (Hint: translational, rotational and vibrational partition functions of reactants and products should be considered in order to calculate their total molecular partition functions) Molecule translation Ovib/K 0,/K D./ (kJmol-) HF 2.64 x 1035 4100 14.2 453.01 H2 2.24 x 1033 5000 84.6 502.02 F2 4.54 x1035 700 0.251 220.02