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Shirley89: ½ð±Ò+25, ·ÒëEPI+1, ¡ï¡ï¡ï¡ï¡ï×î¼Ñ´ð°¸, Ì«¸ÐлÁË 2015-07-11 14:25:27
Shirley89: ½ð±Ò+25, ·ÒëEPI+1, ¡ï¡ï¡ï¡ï¡ï×î¼Ñ´ð°¸, Ì«¸ÐлÁË 2015-07-11 14:25:27
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ÎÄÏ×EEÖÐ¦È ºÍ ¦× values µÄ¼ÆËã·½·¨ÊÇ£º¶ÔÓÚ MX-NX¶þÔª»ìºÏ µç½âÖÊÈÜÒº£¬ÁîÉøÍ¸ÏµÊý »ò »î¶ÈϵÊý µÄʵÑéÖµ Óë Éè¦È=0£¬¦×=0ʱµÄ ¼ÆËãÖµÖ®²î ∆¦È ºÍ∆ln¦Ã,Ôò ÓÉʽ5ºÍʽ4 ¿ÉÒÔ·Ö±ðµÃ³ö ÏÂÁÐʽ×Ó1ºÍ2£º Introduced by reference EE, the calculation methods for ¦Èvalue and ¦× value are: as for MX-NX mixing electrolyte solution, assuming that the ∆¦È is the D-value between the experiment tested osmotic coefficient and the computed osmotic coefficient when ¦È=0; Similarly, the ∆ln¦Ãis the D-value between the experiment tested activity coefficient and the computed activity coefficient when ¦×=0. Therefore, the equations 1 and 2 below can be derived by the equations 5 and 4, respectively. ÔÚÍÆµ¼¹ý³ÌÖУ¬¼ÙÉè¦È'=0. ÓÉʽ1 ¿ÉÒÔ¿´³ö£¬ÒÔAΪºá×ø±ê£¬ÒÔΪ×Ý×ø±ê×÷ͼ£¬¿ÉµÃÒ»ÌõÖ±Ïß¡£´ËÖ±ÏßµÄбÂÊΪ¦×£¬½Ø¾àΪ¦È¡£¶ø±¾ÎÄ ²ÉÓà ×îС¶þ³Ë·¨ ¼ÆËã¦È ºÍ ¦×µÄÖµ£¬²¢Ã»ÓÐ ¼ÙÉè ¦È'=0. ËùÒÔ£¬¼ÆËã½á¹û ¿ÉÄÜ´æÔÚ²îÒì¡£ In the derivation process, suppose ¦È'=0, we can see from the equation 1 that a straight line with slope of ¦× and intercept of ¦Ècan be achieved by setting A as x-coordinate and "****" as y-coordinate. However in this paper, the values of ¦È and ¦× are calculated by least square method without the assuming of ¦È'=0, therefore, the calculated values might be different from the real values. ½«ËùµÃµÄ Ï໥×÷ÓòÎÊý ºÍ ¸÷ÎïÖ浀 »î¶È ´ú»ØÊ½4ÖУ¬ÔÙÓÉ µü´ú·¨ Çó³ö ¸ÃÈýÔªÌåϵ µÄ Èܽâ¶ÈÊý¾Ý£¬¶ÔÄ£ÐÍµÄ ×¼È·¶È ½øÐмìÑé¡£¼ÆËãÖµºÍʵÑéÖµ ¶Ô±È½á¹û ÁÐÓÚ ±í6,7,8ÖС£ËÄÔªÌåϵ ʵÑéÖµÓë¼ÆËãÖµ ¶Ô±È¼ûͼ1. Putting the interaction parameters and activity values of various substances back into the equation 4, then calculate the solubility data of the ternary system solution based on iteration method so as to check the accuracy of the model. The comparative results between the calculated value and experimental value are list in Table 6-8 below. Comparisons between the calculated value and experimental value of the quaternary system are shown in Fig.1. |
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