The boson mass and the condensate in two dimensional QCD with SU(Nc) colors are numerically evaluated with the Bogoliubov vacuum. It is found that the boson mass is finite at the massless limit, and it is well described by the phenomenological expression MNc = 2 3 √ Ncg 3π for large Nc. Also, the condensate values agree very well with the prediction by the 1/Nc expansion. The validity of the na...