  The lattice QCD data of pressure and the energy density have been used to
extract the hadronic radius parameter of the excluded volume hadron resonance
gas (EVHRG) model. The equation of state can be described well with the
extracted radius parameter $R_h= 0.15$ fm. Specific heat is also calculated in
the EVHRG model. Further, two new universal descriptions of chemical freeze-out
parameters have been introduced based on pressure and specific heat
respectively. It is shown that the chemical freeze-out parameters obtained at
various $\sqrt{s_{NN}}$ in ideal HRG model approximately correspond to $P/T^4=
0.88$ and $C_V/T^3= 47$ respectively. These two quantities are important to
describe the thermodynamic properties of the hadronic matter created in heavy
ion collision experiment. The sensitivity of universal chemical freeze-out
lines on repulsive interaction is also studied. It has been observed that the
behaviors of chemical freeze-out lines for $P/T^4$ and $C_V/T^3$ in EVHRG model
remain similar to ideal HRG model for the best fit value of hadronic radii.
