COCO - CAPE-OPEN to CAPE-OPEN simulation environment
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K-Values

In TEA, when using CAPE-OPEN version 1.0, K-values are only available for phase "VaporLiquid". Composition derivatives are not supported.

For CAPE-OPEN version 1.1, K-values are a regular two-phase property.

The only internal routine calculates log(K-values) for phase 1 and phase 2 as log(fugacity coefficient,phase 2) minus log(fugacity coefficient,phase 1). So logFugacityCoefficient must be available for both phases.

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