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Ç¥ÁØ»óÅ¿¡¼ SO2 ³óµµ°¡ 0.05g/m3 À̶ó¸é 80¡É, 0.9atm¿¡¼´Â ¾à ¸î ppmÀΰ¡?
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Ç¥ÁØ»óÅ¿¡¼ÀÇ SO2 ¸Ó¸® Ç¥ÁØ »óÅ´ ¡É(273K)¿Í 1atmÀÔ´Ï´Ù. ÁÖ¾îÁø Á¶°Ç(Ç¥ÁØ »óÅÂ)¿¡¼ SO2ÀÇ ³óµµ´Â .05g/m©øÀÔ´Ï´Ù. ÀÌ ³óµµ¸¦ 80¡É(353K), .9atm¿¡¼ÀÇ ppmÀ¸·Î º¯È¯ÇÏ·Á¸é ¸ÕÀú ÁÖ¾îÁø Á¶°Ç¿¡¼ÀÇ ¸ô ³óµµ¸¦ °è»êÇÑ ÈÄ, À̸¦ »ç¿ëÇØ ¸ñÇ¥ Á¶°Ç¿¡¼ÀÇ ppm °ªÀ» ±¸ÇØ¾ß ÇÕ´Ï´Ù.
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Ç¥ÁØ »óÅ¿¡¼ SO2ÀÇ ¸ô ³óµµ ±¸Çϱâ
- SO2ÀÇ ¸ôÁú·®: 64.066 g/mol
- ³óµµ: .05 g/m©ø
¸ô ³óµµ (mol/m©ø) = Áú·® ³óµµ(g/m©ø) / ¸ôÁú·®(g/mol)
= .05g/m©ø / 64.066g/mol
= .0007805 mol/m©ø
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ÀÌ»ó ±âü ¹ýÄ¢À» ÀÌ¿ëÇØ Á¶°Ç º¯°æ ½Ã ³óµµ º¯È¯
( P_1V_1/T_1 = P_2V_2/T_2 )
¿©±â¼ P´Â ¾Ð·Â, V´Â ºÎÇÇ, T´Â Àý´ë ¿Âµµ(K), 1Àº Ãʱ⠻óÅÂ(Ç¥ÁØ »óÅÂ), 2´Â ÃÖÁ¾ »óÅÂ(80¡É, .9atm)ÀÔ´Ï´Ù.
¿ì¸®´Â ³óµµ(mol/m©ø)¸¦ ´Ù·ç°í ÀÖÀ¸¹Ç·Î V_1 = V_2¶ó°í °¡Á¤ÇÏ°í, ½ÄÀ» ÀçÁ¤·ÄÇÏ¿© ³óµµ¿¡ ´ëÇÑ ½ÄÀ¸·Î º¯È¯ÇÒ ¼ö ÀÖ½À´Ï´Ù.
( n_2 = n_1 \cdot \frac{P_1}{P_2} \cdot \frac{T_2}{T_1} )
- (P_1 = 1atm), (P_2 = .9atm), (T_1 = 273K), (T_2 = 353K), (n_1 = .0007805 mol/m©ø)
(n_2 = .0007805 mol/m©ø \cdot \frac{1atm}{.9atm} \cdot \frac{353K}{273K})
°è»êÀ» Çغ¸¸é,
(n_2 .0007805 \cdot \frac{1}{.9} \cdot \frac{353}{273})
(n_2 .0007805 \cdot 1.1111 \cdot 1.2934)
(n_2 .001118 mol/m©ø)
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ppmÀ¸·Î º¯È¯
ppmÀº ºÎÇÇ ¶Ç´Â ¸ô ºñÀ²·Î Ç¥ÇöµÇ¸ç, 1ppmÀº 1¹é¸¸ ºÐÀÇ 1À» ÀǹÌÇÕ´Ï´Ù. ±âüÀÇ °æ¿ì, ppmv(ppm by volume)·Î Á¾Á¾ Ç¥ÇöµÇ¸ç, ¿©±â¼´Â ¸ô ºñÀ²À» »ç¿ëÇؼ ppmÀ» °è»êÇÒ ¼ö ÀÖ½À´Ï´Ù.
(ppm = n_2 \cdot 10^6 = .001118 mol/m©ø \cdot 10^6 = 1118 ppm)
µû¶ó¼, 80¡É, .9atm¿¡¼ SO2ÀÇ ³óµµ´Â ´ë·« 1118 ppmÀÔ´Ï´Ù.
´Ü, À§ °è»êÀº ÀÌ»ó±âüÀÇ °¡Á¤ÇÏ¿¡ ÁøÇàµÈ °ÍÀ̸ç, ½ÇÁ¦ Á¶°Ç¿¡¼´Â ÀÌ»ó±âü »óŹæÁ¤½ÄÀÇ ÇÑ°è¿Í ±âüÀÇ ½ÇÁ¦ Çൿ Â÷ÀÌ·Î ÀÎÇØ Á¤È®µµ¿¡ ¾à°£ÀÇ Â÷ÀÌ°¡ »ý±æ ¼ö ÀÖ½À´Ï´Ù.
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