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¿¬·á°¡½ºÀÇ ¹Ðµµ¸¦ ±¸ÇÏ·Á´Ù º¸´Ï ¾ÐÃàÀÎÀÚ¸¦ ¾Ë¾Æ¾ß ÇÏ°í ã¾Æ¼ °øºÎÇÏ´ø Áß acentric factor(omega)¸¦ ±¸ÇÏ´Â ºÎºÐ¿¡¼ ¸·Çô¼ ÀÌ·¸°Ô µµ¿òÀ» ¿äûµå¸³´Ï´Ù.
¿¬·á°¡½ºÀÇ Á¶¼ºÀº °Ë»çÀÇ·ÚÇؼ ±¸Çß±¸¿ä, ¿îÀü´ç½ÃÀÇ ¾Ð·Â, ¿Âµµ¿ª½Ã ÃøÁ¤ Çß½À´Ï´Ù. gas mixtureÀ̹ǷΠTpc(pseudocritical temperature)¿Í Ppc(pseudocritical pressure)¸¦ ±¸Çؼ Tpr(pseudo reduced temperature)¸¦ ±¸ÇÏ¿´½À´Ï´Ù. »ó±âÀÇ °ªÀ» °¡Áö°í ¾ÐÃàÀÎÀÚ¸¦ peng rovinsonÀÇ »óŹæÁ¤½ÄÀ» ÀÌ¿ëÇؼ ±¸ÇÏ·Á°í ÇÕ´Ï´Ù. (Generalized compressibility factor graph¸¦ »ç¿ëÇؼ ±¸ÇÏ°í ½ÍÁö´Â ¾Ê½À´Ï´Ù. ÀÌÀ¯´Â ±×·¡ÇÁ»ó¿¡¼ ã´Â °ªÀ̶ó Á¤È®ÇÏÁö ¾ÊÀ» °Í °°¾Æ¼ ÀÔ´Ï´Ù. Ȥ½Ã À̸¦ Tr°ú PrÀ» ÀÔ·ÂÇÏ¸é ±×·¡ÇÁÀÇ Z°ªÀ» Á¤È®ÇÏ°Ô ¾Ë¼ö ÀÖ´Â ÅøÀÌÀÖ´Ù¸é »ç¿ëÇصµ ÁÁÀ» µí ½Í½À´Ï´Ù.)
Áú¹® 1. ±×·±µ¥ acentric factor ¥ø=log10(Pc/Pvp)-1 [Pc=critical pressure, Pvp=saturated vapor pressure of the gas at a temperature of T=0.7Tc) À¸·ÎºÎÅÍ Pvp¸¦ ¾î¶»°Ô ±¸ÇØ¾ß ÇÏ´ÂÁö ¸·¸·ÇÕ´Ï´Ù.
chart³ª tableÀ» ÂüÁ¶ÇÏ¿© ±¸ÇÏ´Â °ÍÀÎÁö ¾Æ´Ï¸é ¾î¶² ´Ù¸¥ ¹æ¹ýÀÌ Àִ°ÍÀÎÁö ¸ð¸£°Ú½À´Ï´Ù.(´ÜÀÏ°¡½º°¡ ¾Æ´Ï¶ó È¥ÇÕ°¡½ºÀε¥ ÀÌ·± Å×À̺íÀÌ ÀÖÀ»¼ö°¡ ÀÖ´ÂÁöµµ Àǹ®ÀÔ´Ï´Ù.)
Áú¹® 2. »ó±â ½Ä¿¡¼ º¸¸é Z¸¦ ±¸Çϱâ À§Çؼ´Â VmÀ» ¸ÕÀú ¾Ë¾Æ¾ß ÇÒ °Í °°½À´Ï´Ù. (a, b¸¦ ¸ðµÎ ±¸ÇÑ»óÅÂ) Á¦ ÀÌÇØ°¡ ¸Â´Â °ÍÀÎÁö¿ä? ±×·¸´Ù¸é ù¹ø° ÁÙÀÇ ½ÄÀ» ÀÌ¿ëÇÏ¿© VmÀ» ±¸ÇÏ¿© ¼¼¹ø° ÁÙÀÇ Z½Ä¿¡ ´ëÀÔÇÏ´Â °ÍÀÎÁö¿ä?(¿©±â¼ VmÀº molar volumeÀÔ´Ï´Ù.)
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