  At $ T = 0 $ the surface tension $ \sigma ^{1/3} $ in the MIT bag model for a
single hadron is known to be negligible as compared to the bag pressure $
B^{1/4}$. We show that at finite temperature it has a substantial value of 50 -
70 MeV which also differ from hadron to hadron. We also find that the dynamics
of the Quark-Gluon Plasma is such that the creation of hybrids $(s\bar{s}g)$
with massive quarks will predominate over the creation of $ (s\bar{s}) $
mesons.
