Therefore, = = 1 = = 1.838 + Hence = 0.838 1.-1 lists the osmotic pressure of aqueous sucrose solution at 30oC calculated using equation (1.-3) for non-ideal solution and equation (1.-4) for ideal solution. The values for model agree well with the experimental data. = ln (1.-3) = = (1.-4) RT CS Table 1.-1 Osmotic pressure (atm) of aqueous sucrose solution at 30oC (mol/liter) Eq. (1.-4) Eq. (1.-3) Exp. Data CS 0.991 20.3 26.8 27.2 1.646 30.3 47.3 47.5 2.366 39.0 72.6 72.5 3.263 47.8 107.6 105.9 4.108 54.2 143.3 144.0 5.332 61.5 199.0 204.3 At a physiological temperature of 37oC, Equation (1.-4) may be written as follows to give the osmotic pressure in mmHg when the solute concentration of each non-diffusing species is expressed in mOsM: = 19.33 (1.-5) CS Title Page California State Polytechnic University, Pomona Chemical and Materials Engineering CHE 313- MASS TRANSPORT SPRING QUARTER, 2012 EXPERIMENT #3
Therefore, = = + 1 = = 1.838 Hence = 0.838 1.-1 lists the osmotic pressure of aqueous sucrose solution at 30oC calculated using equation (1.-3) for non-ideal solution and equation (1.-4) for ideal solution. The values for model agree well with the experimental data. = ln (1.-3) = = RT CS (1.-4) Table 1.-1 Osmotic pressure (atm) of aqueous sucrose solution at 30oC CS (mol/liter) Eq. (1.-4) Eq. (1.-3) Exp. Data 0.991 1.646 2.366 3.263 4.108 5.332 20.3 30.3 39.0 47.8 54.2 61.5 26.8 47.3 72.6 107.6 143.3 199.0 27.2 47.5 72.5 105.9 144.0 204.3 At a physiological temperature of 37oC, Equation (1.-4) may be written as follows to give the osmotic pressure in mmHg when the solute concentration of each non-diffusing species is expressed in mOsM: = 19.33 CS (1.-5) Title Page California State Polytechnic University, Pomona Chemical and Materials Engineering CHE 313- MASS TRANSPORT SPRING QUARTER, 2012 EXPERIMENT #3