A comprehensive theory is developped to describe the expansion of a plasma into a vacuum ALOE JUICE WHOLE LEAF with a two-temperature electron distribution function.The characteristics of the rarefaction shock which occurs in the plasma when the hot- to the cold-electron temperature ratio is larger than 9.9 are investigated with a semi-infinite plasma.Furthermore by using a finite plasma foil, a possible heating of the cold electrons population is evidenced, for a sufficiently large hot- to the cold-electron Samsung GS20+ density ratio.