a non ideal mixture of components A and B exhibits an azeotrope at the composition Xa = Ya = 0.7. At this composition component A has an activity coefficient of 1.24 while component B has an activity coefficient of 3.24/ for computational simplicity, we will assume that the activity coefficients are well-fit by the single-costant Margules equations given. a) Find the activity coefficients for components A and B when these components are present in a nequimolar mixture. b)at 80 degrees C, pure component A has a saturation pressure oof 600 torr while pure component B has a saturation pressure of 400 torr. What will be the vapor pressure of the equimolar mixture of A and B described in part a) at 80 degrees C?
a non ideal mixture of components A and B exhibits an azeotrope at the composition Xa = Ya = 0.7. At this composition component A has an activity coefficient of 1.24 while component B has an activity coefficient of 3.24/ for computational simplicity, we will assume that the activity coefficients are well-fit by the single-costant Margules equations given.
a) Find the activity coefficients for components A and B when these components are present in a nequimolar mixture.
b)at 80 degrees C, pure component A has a saturation pressure oof 600 torr while pure component B has a saturation pressure of 400 torr. What will be the vapor pressure of the equimolar mixture of A and B described in part a) at 80 degrees C?
(a) To find the activity coefficients for components A and B when these components are present in a nequimolar mixture, we can use the single-constant Margules equations. The Margules equations are given by:
where:
- γ_A and γ_B are the activity coefficients of components A and B, respectively
- A is the Margules parameter
- x_A and x_B are the mole fractions of components A and B, respectively
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