  Aqueous solutions of rare gases are studied by computer simulation employing
a polarizable potential for both water and solutes. The use of a polarizable
potential allows to study the systems from ambient to supercritical conditions
for water. In particular the effects of increasing the concentration and the
size of the apolar solutes are considered in an extended range of temperatures.
By comparing the results at increasing temperature it appears clearly the
change of behaviour from the tendency to demix at ambient conditions to a
regime of complete solubility in the supercritical region. In this respect the
role of the hydrogen bond network of water is evidenced.
