Difference between revisions of "Thermodynamics"
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slider.py example
(→Vapor-liquid equilibrium diagram ideal mixture) |
(→Vapor-liquid equilibrium diagram ideal mixture) |
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<math>p=p_A^*+(p_B^*-p_B^*)x_A^l</math> | <math>p=p_A^*+(p_B^*-p_B^*)x_A^l</math> | ||
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+ | 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_B^*-p_B^*)x_A^l</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 17:39, 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_A^*+(p_B^*-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_B^*-p_B^*)x_A^l[/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.
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