In the above equations, zi is either xi or yi depending on the phase being considered, and ni is the number of moles of component i in that phase. The quantity (fi/ziP) is called the fugacity coefficient fa of component i in the mixture.

Ideal Systems

In the case of an ideal gas mixture, substitution of the ideal gas equation PV = nRT into eqn [5] leads to:

Similarly, substitution of the volume additivity relation for ideal liquid mixtures V = SnivL (where vL is the molar volume of component i at the temperature and pressure of the solution) leads to:

Solar Panel Basics

Solar Panel Basics

Global warming is a huge problem which will significantly affect every country in the world. Many people all over the world are trying to do whatever they can to help combat the effects of global warming. One of the ways that people can fight global warming is to reduce their dependence on non-renewable energy sources like oil and petroleum based products.

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