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shench_221
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¡ï ¡ï
jincanyan(½ð±Ò+2): ¶àлӦÖú 2011-06-19 14:53:18
jincanyan(½ð±Ò+2): ¶àлӦÖú 2011-06-19 14:53:18
|
4Â¥µÄζȸüÕýΪ£º n(p/mmHg)=A-B/(T/K+C) Antoine Constants and the corresponding temperature region A B C Tmin /K Tmax /K 8.13484 1662.48 238.131 159.05 516.25 ------------------------------------------------------------------------------------------------ ÏÂÃæ¸ø³öÁíÍâÒ»ÖÖÐÎʽµÄAntoine²ÎÊý£¬²ÎÊýÔ½¶à£¬¼ÆËãµÄ¾«¶ÈÏà¶Ô½Ï¸ß¡£ Title: Yaws' Handbook of Thermodynamic and Physical Properties of Chemical Compounds Table: Vapor Pressure Cited from ¡°Yaws, C. L., Yaws' Handbook of Thermodynamic and Physical Properties of Chemical Compounds. 2003. Online version available at: http://knovel.com/web/portal/bro ... 67&VerticalID=0 ¡± ------------------------------------------------------------------------- Row (Record) Number: 1969 ethyl alcohol or ethanol; CAS Registry No. 64-17-5 mol. Formula C2H6O mol. Weight 46.069 g.mol-1 ------------------------------------------------------------------------- The correlation for vapor pressure as a function of temperature is given by: log10 P = A + B/T + C log10 T + D T + E T2 Eq. 1 where P = vapor pressure, mm Hg A, B, C, D, and E = regression coefficients for chemical compound T = temperature, K The results for vapor pressure are given in the live table. The tabulated values are based on regression of experimental data and researched estimates. Tmin and Tmax describe the temperature range the equation is valid for. A 23.844 B -2864.2 C -5.0474 D 3.7448E-11 E 2.7361E-07 Tmin (K) 159.05 Tmax (K) 516.25 Tmin (¡æ) -114.10 Tmax (¡æ) 243.10 |

5Â¥2011-06-15 12:01:11
ÑîÍþ.001
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liufengbao100(½ð±Ò+1): ллӦÖú~ 2011-06-14 23:07:03
scxdtdfl(½ð±Ò+88): 2 2011-06-15 10:14:36
jincanyan(½ð±Ò+1): ¶àлӦÖú 2011-06-19 14:47:21
liufengbao100(½ð±Ò+1): ллӦÖú~ 2011-06-14 23:07:03
scxdtdfl(½ð±Ò+88): 2 2011-06-15 10:14:36
jincanyan(½ð±Ò+1): ¶àлӦÖú 2011-06-19 14:47:21
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¼×´¼£ºÓÃÒÔϹ«Ê½¼ÆË㣬TΪÉãÊÏζÈÖµ PΪ±¥ºÍÕôÆûѹ(kPa) P =a + b ¡Á T + c ¡Á T^2 + d ¡Á T^3 + e ¡Á T^4 ÆäÖÐ a = -1.0745 b = -0.1788 c = 0.0311 d = -0.0002 e = 0.000003 |

2Â¥2011-06-14 22:52:37
scxdtdfl
Òø³æ (ÕýʽдÊÖ)
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3Â¥2011-06-15 00:06:09
shench_221
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¡ï ¡ï
jincanyan(½ð±Ò+2): ¶àлӦÖú 2011-06-19 14:53:13
jincanyan(½ð±Ò+2): ¶àлӦÖú 2011-06-19 14:53:13
|
Compound: ethyl alcohol or ethanol CAS NO: 64-17-5 Formula: C2H6O ln(p/mmHg)=A-B/(T/K+C) Antoine Constants and the corresponding temperature region A B C Tmin /K Tmax /K 8.13484 1662.48 238.131 -114.1 243.1 Cited from ¡°Yaws, C. L., Yaws' Handbook of Thermodynamic and Physical Properties of Chemical Compounds. 2003. Online version available at: http://knovel.com/web/portal/bro ... 67&VerticalID=0 ¡± |

4Â¥2011-06-15 11:22:12













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