The relation connecting the fugacities of various components in a solution with one another and to composition at constant temperature and pressure is called the __________ equation.
A. Gibbs-Duhem
B. Van Laar
C. Gibbs-Helmholtz
D. Margules
Answer: Option A
Solution(By Examveda Team)
The gibbs duhem equation is an equation that relates the partial modal properties of different species in the solution with composition at constant temperature and pressure and the equation is given by :Writing the gibbs duhem equation in terms of partial gibbs free energy :
$$\sum\nolimits_{i\, = \,1}^n {} {x_i}d{\overrightarrow G _i} = 0$$
Since
We can write \[\sum\nolimits_{i\,=\,1}^{n}{{}}{{x}_{i}}d{{\left( ln\overset\frown{f} \right)}_{i}}=0\]
So, by gibbs duhem equation the composition and fugacity are related.
Related Questions on Chemical Engineering Thermodynamics
A. Maxwell's equation
B. Thermodynamic equation of state
C. Equation of state
D. Redlich-Kwong equation of state
Henry's law is closely obeyed by a gas, when its __________ is extremely high.
A. Pressure
B. Solubility
C. Temperature
D. None of these
A. Enthalpy
B. Volume
C. Both A & B
D. Neither A nor B
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