Enthalpy of mixing data for binary mixtures of water (1) and acetone (2) have been fi t to the following equation:

where Δhmix has units of J/mol. At 60°C, the activity coeffi cient of water in an equimolar mixture of water and acetone is 1.65. Estimate the activity coeffi cient of water in an equimolar mixture of water and acetone at 100°C. State any assumptions that you make.

Transcribed Image Text:

Ahmix = xx[-447.8 +3802(x-x) 1200(x x) + 1554(x x)] -