Using DePriester Chart and Given one of mole fractions ($z$), pressure and temperature we can acquire K-values for that properties and bubble and dew properties.
Now there are sometimes that we get some K's and using the summation of $y/k$ we get some quantities that are not 1, like 0.9 or 1.2. My question is about those values, are they showing some physical property?
If I wanted to calculate the dew point pressure at a given temperature and I take arbitrary pressures (including the dew point pressure) I get the following results.
[p] = psi sum of y/k - - - - - - - - - - - - 100 0.828 126 1.000 150 1.174
Do the values for the pressures above and below the dew point pressure have a physical meaning?
For example, showing us that we are in two-phase, SH vapor or SC liquid region? Or are they just showing there isn't VLE with that given property?