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102 KKU Science Journal Volume 39 Number 1 Research<br />
‡àππ’ȇªìπ‰ªµ“¡ ¡°“Õ“√å‡√‡π’¬ ¡°“√∑’Ë (1) ®“°<br />
º≈°“√«‘®—¬‡¡◊ËÕπ”Õ—µ√“°“√‡æ‘Ë¡¢÷Èπ¢Õß§à“°√¥·≈–<br />
§à“‡ªÕ√åÕÕ°‰´¥å®“°«—π∑’Ë 0 ‰ª «—π∑’Ë 1 ¢ÕßπÈ”¡—π<br />
√”¢â“«ÀÕ¡¡–≈‘Õ‘π∑√’¬å·∫∫∫’∫‡¬Áπ‡ªìπ§à“§ß∑’ËÕ—µ√“‡√Á«<br />
(k) ¡“æ≈äÕµ°√“ø· ¥ß§«“¡ —¡º— √–À«à“ß log k °—∫<br />
1/T ‰¥â°√“ø¥—ß√Ÿª∑’Ë 3 ·≈– 4<br />
√Ÿª∑’Ë 3 Arrhenius plot ¢ÕßÕ—µ√“°“√‡æ‘Ë¡¢÷Èπ¢Õß§à“°√¥<br />
√Ÿª∑’Ë 4 Arrhenius plot ¢ÕßÕ—µ√“°“√‡æ‘Ë¡¢÷Èπ¢Õß§à“‡ªÕ√åÕÕ°‰´¥å
102 KKU Science Journal Volume 39 Number 1 Research ‡àππ’ȇªìπ‰ªµ“¡ ¡°“Õ“√å‡√‡π’¬ ¡°“√∑’Ë (1) ®“° º≈°“√«‘®—¬‡¡◊ËÕπ”Õ—µ√“°“√‡æ‘Ë¡¢÷Èπ¢Õß§à“°√¥·≈– §à“‡ªÕ√åÕÕ°‰´¥å®“°«—π∑’Ë 0 ‰ª «—π∑’Ë 1 ¢ÕßπÈ”¡—π √”¢â“«ÀÕ¡¡–≈‘Õ‘π∑√’¬å·∫∫∫’∫‡¬Áπ‡ªìπ§à“§ß∑’ËÕ—µ√“‡√Á« (k) ¡“æ≈äÕµ°√“ø· ¥ß§«“¡ —¡º— √–À«à“ß log k °—∫ 1/T ‰¥â°√“ø¥—ß√Ÿª∑’Ë 3 ·≈– 4 √Ÿª∑’Ë 3 Arrhenius plot ¢ÕßÕ—µ√“°“√‡æ‘Ë¡¢÷Èπ¢Õß§à“°√¥ √Ÿª∑’Ë 4 Arrhenius plot ¢ÕßÕ—µ√“°“√‡æ‘Ë¡¢÷Èπ¢Õß§à“‡ªÕ√åÕÕ°‰´¥å
ß“π«‘®—¬ «“√ “√«‘∑¬“»“ µ√å ¡¢. ªï∑’Ë 39 ©∫—∫∑’Ë 1 103 ‡¡◊ËÕ∑√“∫§à“§ß∑’ËÕ—µ√“‡√Á« (k) ∑’ËÕÿ≥À¿Ÿ¡‘ Ÿß “¡“√∂§”π«≥À“§à“§ß∑’ËÕ—µ√“‡√Á«∑’ËÕÿ≥À¿Ÿ¡‘ÀâÕߪ√°µ‘ (25 Õß»“‡´≈‡´’¬ ) ‰¥â ®÷ß∑”„Àâ “¡“√∂∑”π“¬Õ“¬ÿ ¢Õߺ≈‘µ¿—≥±å‰¥â®“° ¡°“√Õ“√å‡√‡π’¬ ¡°“√∑’Ë (1) ´÷Ëß “¡“√∂¥—¥·ª≈߇æ◊ËՄ⧔π«≥§à“§ß∑’ËÕ—µ√“‡√Á« (k) ∑’ËÕÿ≥À¿Ÿ¡‘µà“ß°—π‰¥â¥—ß ¡°“√∑’Ë (2) k log k 2 1 Ea T 2 T1 2.303R TT 1 2 (2) ‡¡◊ËÕ„Àâ k 1 ·≈– k 2 = §à“§ß∑’ËÕ—µ√“‡√Á«∑’ËÕÿ≥À¿Ÿ¡‘ 25 Õß»“‡´≈‡´’¬ ·≈– 40 Õß»“ ‡´≈‡´’¬ T 1 ·≈– T 2 = Õÿ≥À¿Ÿ¡‘ 25 Õß»“‡´≈‡´’¬ ·≈– 40 Õß»“‡´≈‡´’¬ ®“° ¡°“√∑’Ë (2) ‰¥â§à“§ß∑’ËÕ—µ√“‡√Á«¢Õß§à“ °√¥·≈–§à“‡ªÕ√åÕÕ°‰´¥å∑’ËÕÿ≥À¿Ÿ¡‘ 25 Õß»“‡´≈‡´’¬ ‡∑à“°—∫ 0.000062 day -1 ·≈– 0.000059 day -1 ·≈– Õ“¬ÿ°“√‡°Á∫√—°…“¢ÕßπÈ”¡—π√”¢â“«ÀÕ¡¡–≈‘Õ‘π∑√’¬å ·∫∫∫’∫‡¬Áπ “¡“√∂§“¥§–‡π®“° ¡°“√Õ“¬ÿ°“√‡°Á∫ √—°…“ ¡°“√∑’Ë (3) 0.105 t (3) 90 k ®“°°“√§“¥§–‡πÕ“¬ÿ°“√‡°Á∫√—°…“¢Õß πÈ”¡—π√”¢â“«ÀÕ¡¡–≈‘Õ‘π∑√’¬å·∫∫∫’∫‡¬Áπ∑’ËÕÿ≥À¿Ÿ¡‘25 Õß»“‡´≈‡´’¬ æ∫«à“º≈‘µ¿—≥±å¡’Õ“¬ÿ°“√‡°Á∫√—°…“ ‡ªìπ‡«≈“ 1697.23 «—π À√◊Õ 4.6 ªï ‡¡◊ËÕæ‘®“√≥“®“° §à“°√¥ ·≈– 1771.02 «—π À√◊Õ 4.9 ªï ‡¡◊ËÕæ‘®“√≥“ ®“°§à“‡ªÕ√åÕÕ°‰´¥å π—Èπ§◊Õ À“°‡°Á∫πÈ”¡—π√”¢â“« ÀÕ¡¡–≈‘Õ‘π∑√’¬å·∫∫∫’∫‡¬Áπ‰«âπ“π‡°‘π 4.6 ªï À√◊Õ 4.9 ªï º≈‘µ¿—≥±å®–¡’§à“°√¥ ·≈–§à“‡ªÕ√åÕÕ°‰´¥å ‡°‘π°«à“‡°≥±å¡“µ√∞“ππÈ”¡—πæ◊∫√‘‚¿§°”Àπ¥‰«â §◊Õ §à“°√¥‰¡à‡°‘π 4 ¡‘≈≈‘°√—¡ KOH/ °√—¡πÈ”¡—π ·≈–§à“ ‡ªÕ√åÕÕ°‰´¥å‰¡à‡°‘π 10 ¡‘≈≈‘°√—¡/ °‘‚≈°√—¡πÈ”¡—π ¥—ßπ—ÈπÀ“°°”Àπ¥„ÀâπÈ”√”¢â“«ÀÕ¡¡–≈‘Õ‘π∑√’¬å·∫∫ ∫’∫‡¬Áπ¡’Õ“¬ÿ°“√‡°Á∫√—°…“∑’Ë 4.9 ªï º≈‘µ¿—≥±å®–¡’§à“ °√¥‡°‘π¡“µ√∞“π ß“π«‘®—¬π’È®÷߇≈◊Õ°„⇰≥±å¡“µ√∞“π πÈ”¡—πæ◊∫√‘‚¿§°”Àπ¥Õ“¬ÿ°“√‡°Á∫√—°…“πÈ”¡—π√”¢â“« ÀÕ¡¡–≈‘Õ‘π∑√’¬å·∫∫∫’∫‡¬Áπ∑’Ë 4.6 ªï‚¥¬æ‘®“√≥“®“° §à“°√¥ √ÿªº≈°“√∑¥≈Õß §ÿ≥ ¡∫—µ‘∑“ß°“¬¿“懧¡’¢ÕßπÈ”¡—π√”¢â“« ÀÕ¡¡–≈‘Õ‘π∑√’¬å·∫∫∫’∫‡¬Áπ∑’Ëπ”¡“»÷°…“„π§√—Èßπ’È Õ¬Ÿà„π‡°≥±å¡“µ√∞“ππÈ”¡—πæ◊∫√‘‚¿§ ‚¥¬¡’§à“¥—π’ À—°‡À §à“§«“¡◊Èπ §à“°√¥ §à“‡ªÕ√åÕÕ°‰´¥å ·≈–§à“ ‰Õ‚Õ¥’π ‡∑à“°—∫ 1.3294 √âÕ¬≈– 0.20 1.36 ¡‘≈≈‘°√—¡ KOH / °√—¡πÈ”¡—π 3.12 ¡‘≈≈‘°√—¡/ °‘‚≈°√—¡πÈ”¡—π ·≈– 93.02 ¡‘≈≈‘°√—¡/ °√—¡πÈ”¡—𠵓¡≈”¥—∫ °√¥ ‰¢¡—πÕߧåª√–°Õ∫∑’Ë ”§—≠ §◊Õ °√¥ª“≈å¡‘µ‘° √âÕ¬≈– 21.79 °√¥ ‡µ’¬√‘°√âÕ¬≈– 1.86 °√¥‚Õ‡≈Õ‘° √âÕ¬≈– 44.85 °√¥≈‘‚π‡≈Õ‘° √âÕ¬≈– 31.32 ·≈–°√¥≈‘‚π‡≈π‘° √âÕ¬≈– 0.19 ¡’·°¡¡“-‚Õ‰√´“πÕ≈´÷Ë߇ªìπ “√µâ“π °“√‡°‘¥ÕÕ°´‘‡¥—Ëπµ“¡∏√√¡“µ‘∑’Ë¡’‡©æ“–„ππÈ”¡—π √”¢â“«‡∑à“π—Èπ Ÿß∂÷ß√âÕ¬≈– 1.298 À√◊Õ 12,980 ppm ·≈–º≈‘µ¿—≥±å¡’Õ“¬ÿ°“√‡°Á∫√—°…“‡ªìπ‡«≈“ 1697.23 «—π À√◊Õ 4.6 ªï °“√»÷°…“π’È∂◊Õ‡ªìπ·π«∑“ß„π°“√æ—≤π“ ·≈–º≈‘µπÈ”¡—π√”¢â“«ÀÕ¡¡–≈‘Õ‘π∑√’¬å·∫∫∫’∫‡¬Á𠇪ìπ ‘π§â“‡°…µ√Õ‘π∑√’¬åª√–®”®—ßÀ«—¥ ÿ√‘π∑√å∑’Ë¡’ §ÿ≥¿“æ∑’Ë¥’‰¥âµàÕ‰ª °‘µµ‘°√√¡ª√–°“» ß“π«‘®—¬π’ȉ¥â√—∫°“√ π—∫ πÿπ®“°∑ÿπÕÿ¥Àπÿπ «‘®—¬¡À“«‘∑¬“≈—¬√“¿—Ø ÿ√‘π∑√å ®“° ∂“∫—π«‘®—¬·≈– æ—≤π“·Ààß¡À“«‘∑¬“≈—¬√“¿—Ø ÿ√‘π∑√å ·≈–¢Õ¢Õ∫§ÿ≥ À°√≥凰…µ√Õ‘π∑√’¬å°Õß∑ÿπ¢â“« ÿ√‘π∑√å∑’ËÕπÿ‡§√“–Àå µ—«Õ¬à“ßπÈ”¡—π√”¢â“«ÀÕ¡¡–≈‘Õ‘π∑√’¬å·∫∫∫’∫‡¬Áπ
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