Problem Three $[15]$

One mole of each of species $,B,$ and C $($i$.$e$.,$ a total of three moles$)$ are initially introduced into a rigid vessel. The vessel is then allowed to come to equilibrium, where the same three species were observed to be distributed among three phases $($two liquid phases I,$1$ and I$\mathrm{.}2,$ and a vapour phase, V$).$ There is a strong evidence that thereaction $AB$ has also happened.

Following a clear terminology, list down the intensive phase rule variables $($e$.$g:$.x_{{?}^{{?}^{?}}}^{1\mathrm{.}2}$ refers to the mole fraction of species $$ in liquid $I\mathrm{.}2)$

$5$

Your friend tells you that knowing one intensive variable at equilibrium, such as T is sufficient to solve for all other intensive and extensive variables. Do you agrec with this? Show your analysis

$[10]$