Experimental vapor pressure measurements reported in the literature for 1,1,1,2,3,3-hexafluoropropane(R-236ea) have been used to evaluate the constants and exponent of the modified Frost-Kalkwarf vapor pressure equation in the reduced form as follows ...
Experimental vapor pressure measurements reported in the literature for 1,1,1,2,3,3-hexafluoropropane(R-236ea) have been used to evaluate the constants and exponent of the modified Frost-Kalkwarf vapor pressure equation in the reduced form as follows :
InP_r = 11.04-11.5/T_r-5.98782InT_r+0.46T^5_r
Only the normal boiling point (T_b = 279.65 K), the critical pressure (P_c = 3501.99 kPa), and the critical temperature (T_c = 412.445 K) are necessary to calculate the vapor pressure and to acquire an overall average deviation of 0.35 % for 246 experimental vapor pressure data.