ÌâÄ¿ÄÚÈÝ

15£®ÒÑÖª£º2H2£¨g£©+O2£¨g£©?2H2O£¨l£©¡÷H=-571.6kJ•mol-1£¬CO£¨g£©+$\frac{1}{2}$ O2£¨g£©?CO2£¨g£©¡÷H=-282.8kJ•mol-1£¬ÏÖÓÐCO¡¢H2ºÍCO2×é³ÉµÄ»ìºÏÆøÌå112.0L£¨±ê×¼×´¿ö£©£¬¾­ÍêȫȼÉÕºó·Å³öµÄ×ÜÈÈÁ¿Îª851.4kJ£¬²¢Éú³É18gҺ̬ˮ£®ÔòȼÉÕǰ»ìºÏÆøÌåÖÐCOµÄÌå»ý·ÖÊýΪ£¨¡¡¡¡£©
A£®80%B£®40%C£®60%D£®20%

·ÖÎö »ìºÏÆøÌåµÄÎïÖʵÄÁ¿Îª$\frac{112.0L}{22.4L/mol}$=5mol£¬ÇâÆøÈ¼ÉÕÉú³ÉË®£¬n£¨H2O£©=$\frac{18g}{18g/mol}$=1mol£¬ÔòÉú³ÉË®·Å³öÈÈÁ¿Îª$\frac{571.6kJ}{2}$=285.8kJ£¬¾­ÍêȫȼÉÕºó·Å³öµÄ×ÜÈÈÁ¿Îª851.4kJ£¬COȼÉշųöÈÈÁ¿Îª851.4kJ-285.8kJ=565.6kJ£¬ÒÔ´ËÀ´½â´ð£®

½â´ð ½â£º»ìºÏÆøÌåµÄÎïÖʵÄÁ¿Îª$\frac{112.0L}{22.4L/mol}$=5mol£¬ÇâÆøÈ¼ÉÕÉú³ÉË®£¬n£¨H2O£©=$\frac{18g}{18g/mol}$=1mol£¬ÓÉ2H2£¨g£©+O2£¨g£©?2H2O£¨l£©¡÷H=-571.6kJ•mol-1¿ÉÖªÉú³ÉË®·Å³öÈÈÁ¿Îª$\frac{571.6kJ}{2}$=285.8kJ£¬¾­ÍêȫȼÉÕºó·Å³öµÄ×ÜÈÈÁ¿Îª851.4kJ£¬COȼÉշųöÈÈÁ¿Îª851.4kJ-285.8kJ=565.6kJ£¬ÓÉCO£¨g£©+$\frac{1}{2}$ O2£¨g£©?CO2£¨g£©¡÷H=-282.8kJ•mol-1¿ÉÖª£¬n£¨CO£©=$\frac{565.6kJ}{282.8kJ/mol}$=2mol£¬ÔòȼÉÕǰ»ìºÏÆøÌåÖÐCOµÄÌå»ý·ÖÊýΪ$\frac{2mol}{5mol}$¡Á100%=40%£¬
¹ÊÑ¡B£®

µãÆÀ ±¾Ì⿼²é·´Ó¦ÈÈÓëìʱ䣬Ϊ¸ßƵ¿¼µã£¬°ÑÎÕ·´Ó¦ÖÐÄÜÁ¿±ä»¯Îª½â´ðµÄ¹Ø¼ü£¬²àÖØ·ÖÎöÓë¼ÆËãÄÜÁ¦µÄ¿¼²é£¬×¢ÒâÆøÌåµÄÎïÖʵÄÁ¿±ÈµÈÓÚÌå»ý±È£¬ÌâÄ¿ÄѶȲ»´ó£®

Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿
3£®ÂÁÊǵؿÇÖк¬Á¿×î¶àµÄ½ðÊôÔªËØ£¬Æäµ¥Öʺͻ¯ºÏÎï¹ã·ºÓ¦ÓÃÓÚÈÕ³£Éú»îÖУ®
£¨1£©¹¤ÒµÉÏÒÔÂÁÍÁ¿ó£¨Al2O3•H2O£©ÎªÔ­ÁÏÉú²úÂÁ£¬Ö÷Òª°üÀ¨ÏÂÁйý³Ì£º
i£®½«·Û´â¡¢É¸Ñ¡ºóµÄÂÁÍÁ¿óÈܽâÔÚNaOHÈÜÒºÖУ»
ii£®Í¨Èë¹ýÁ¿µÄÊÔ¼ÁAʹËùµÃÈÜÒºÖÐÎö³öAl£¨OH£©3¹ÌÌ壻
iii£®Ê¹Al£¨OH£©3ÍÑË®Éú³ÉAl2O3£»
iv£®µç½âÈÛÈÚAl2O3Éú³ÉAl£®
¢ÙÂÁÍÁ¿ó·Û´âµÄÄ¿µÄÊÇÔö´ó½Ó´¥Ãæ»ý£¬¼Ó¿ì·´Ó¦ËÙÂÊ£®
¢ÚÊÔ¼ÁAµÄ»¯Ñ§Ê½ÊÇCO2£¬¸Ã·´Ó¦µÄÀë×Ó·½³ÌʽÊÇCO2+AlO2-+2H2O¨THCO3-+Al£¨OH£©3¡ý£®
£¨2£©NaOHÈÜÒº¿ÉÒÔ³ýÈ¥ÂÁ±íÃæµÄÑõ»¯Ä¤£¬ÔÚ´¦Àí¹ý³ÌÖг£»á²úÉúH2£¬²úÉúH2µÄÀë×Ó·½³ÌʽÊÇ2Al+2OH-+2H2O=2AlO2-+3H2¡ü£®
£¨3£©Ã÷·¯»¯Ñ§Ê½ÎªKAl£¨SO4£©2•12H2O£¬ÏòÃ÷·¯ÈÜÒºÖмÓÈëBa£¨OH£©2ÈÜÒº£¬µ±ÈÜÒºÖеÄSO42-Ç¡ºÃ³Áµíʱ£¬ÂÁÔªËØµÄ´æÔÚÐÎʽÊÇAlO2-£®
£¨4£©¹¤ÒµÉÏÀûÓÃÂÁ·Û³ýÈ¥º¬µª·ÏË®ÖеÄNO3-£¬µ±¿ØÖÆÈÜÒºpHÔÚ10.7×óÓÒʱ£¬·´Ó¦¹ý³ÌÖÐÉú³É[Al£¨OH£©4]-¡¢N2ºÍNH3£¬ÈôN2ºÍNH3µÄÌå»ý±ÈΪ4£º1£¬Ôò»¹Ô­¼ÁºÍÑõ»¯¼ÁµÄÎïÖʵÄÁ¿Ö®±ÈΪ16£º9£¬ÈôµªÆøºÍ°±ÆøµÄÌå»ý±ÈΪ1£º1£¬Ôò³ýÈ¥0.1molNO3-£¬ÏûºÄÂÁ5.4g£®

Î¥·¨ºÍ²»Á¼ÐÅÏ¢¾Ù±¨µç»°£º027-86699610 ¾Ù±¨ÓÊÏ䣺58377363@163.com

¾«Ó¢¼Ò½ÌÍø