Difference between revisions of "Thermodynamics"
(→Vapor-liquid equilibrium diagram ideal mixture) |
(→Vapor-liquid equilibrium diagram ideal mixture) |
||
| Line 6: | Line 6: | ||
The red curve shows the vapor pressure of the mixture <math>p</math> as a function of the mole fraction of A in the liquid <math>x_A^l</math>: | The red curve shows the vapor pressure of the mixture <math>p</math> as a function of the mole fraction of A in the liquid <math>x_A^l</math>: | ||
| − | <math>p= | + | <math>p=p_B^*+(p_A^*-p_B^*)x_A^l</math> |
The black curve shows the vapor pressure of the mixture <math>p</math> as a function of the mole fraction of A in the vapor <math>x_A^v</math>: | The black curve shows the vapor pressure of the mixture <math>p</math> as a function of the mole fraction of A in the vapor <math>x_A^v</math>: | ||
| − | <math>p=p_A^*p_B^*/( | + | <math>p=p_A^*p_B^*/(p_A^*-(p_A^*-p_B^*)x_A^v)</math> |
In the example below <math>p_A^*=1</math> (a.u.) and the <math>p_B^*/p_A^*</math> ratio can be changed moving the slider below. | In the example below <math>p_A^*=1</math> (a.u.) and the <math>p_B^*/p_A^*</math> ratio can be changed moving the slider below. | ||
Revision as of 17:46, 21 April 2019
Vapor-liquid equilibrium diagram ideal mixture
The following plot shows the vapor-liquid phase diagram for a binary ideal mixture (components: A and B). The vapor pressures of the pure substances are [math]p_A^*[/math] and [math]p_B^*[/math], respectively.
The red curve shows the vapor pressure of the mixture [math]p[/math] as a function of the mole fraction of A in the liquid [math]x_A^l[/math]:
[math]p=p_B^*+(p_A^*-p_B^*)x_A^l[/math]
The black curve shows the vapor pressure of the mixture [math]p[/math] as a function of the mole fraction of A in the vapor [math]x_A^v[/math]:
[math]p=p_A^*p_B^*/(p_A^*-(p_A^*-p_B^*)x_A^v)[/math]
In the example below [math]p_A^*=1[/math] (a.u.) and the [math]p_B^*/p_A^*[/math] ratio can be changed moving the slider below.
Return to Main_Page
