  We study thermodynamic properties and speed of sound in a free en- ergy
evolution of quark-gluon plasma (QGP) with one loop correction factor in the
mean-field potential. The values of the thermodynamic prop- erties like
pressure, entropy and specific heat are calculated for a range of temperatures.
The results agree with the recent lattice results. The speed of sound is found
to be C2 s = 0.3 independent of parameters used in the loop correction which
matches almost with lattice calculations.
