Lines 1: 3 lines of characters identifying the run (max 72 characters/line)
Real gas data for R-142b (1-choloro-1,1-difluoroethane)
C Hornsby
19 May 2010

Lines 2: Name of gas (72 characters)
gas_name
R142b

Lines 3:  Molecular mass and/or Gas constant
MW (kg/kmol)   Gas_R (J/kg/K)
100.495         82.73

Lines 4:  Critical point parameters and acentric factor
Pc  (Pa)    Tc (K)    Vc (m3/kg)     gas_omega (-)
4055000.0   410.3      0.002242       0.2321

Lines 5:  Temperature limits of piecewise specific heat curves
T_min (K)   T_max(K)  order_T_poly (max 8)
150.0       470.0      5

Lines 6: Coefficients of cp_polynomial for temperature range (T_min<T<T_max)
A1              A2              A3             A4               A5  
1.922e2       2.2938         4.0262e-4     -3.9591e-6        2.7726e-9 

