njit-etd1961-002 - New Jersey Institute of Technology

¹8Correcting the entropy of the ideal gas at 1 atm. to theentropy of the ideal gas at the pressure correspondingto.¹0°C.¹,6where the saturated pressure corresponding to¹0°C. is ³.¹6 atm. Therefore,S*2 = S*1 - 1.987 In13 1S*2 = ²3.3942 - 1.987 ln 3 ' ¹6S*2 = ²1.¹092 cal/g-mole °KCorrecting for ideality for the saturated vapor at +¹0°C. 3 .where Tr = 0.683 and Z c = 0.²2²(S* 2 - S) = 0.46³7SSV = S* 2 - 0.46³7SSV = 20.6455 cal/g-mole ° KSaturated liquid enthalpies and entropies were determinedas follows ¹7at ¹0°C. 7\1 =0.38where 7\ ¹and²= heat of vaporization at-19°C. and ¹0°C. respectivelyT and T r2= reduced temperature at- 19°C. and ¹0°C. respectively0.³8X 1 = '1-0.613)= ¹.07847\2. _1-0.6837\ 2 =5570S 2 = 7\2T 2,(1-Tr)2 λ2 2= 5165.059 cal/g-mole5¹65'059= ¹8. 24¹ cal/g-mole °KAS 2 = 283.16-