Five grams of the specified pure solvent is placed in a variable volume piston. What is the volume of the pure system when 50% and 75% have been evaporated at: 

(i) 30°C, 

(ii) 50°C? 

Use the Antoine equation (Appendix E) to relate the saturation temperature and saturation pressure. Use the ideal gas law to model the vapor phase. Show that the volume of the system occupied by liquid is negligible compared to the volume occupied by vapor.

(a) Hexane (ρ^L = 0.66 g/cm³)

(b) Benzene (ρ^L = 0.88 g/cm³)

(c) Ethanol (ρ^L = 0.79 g/cm³)

(d) Water without using the steam tables (ρ^L = 1 g/cm³)

(e) Water using the steam tables

Transcribed Image Text:

log 10psat = A- B T+C