Question

ÒÑÖªÏÂÁÐÈÈ»¯Ñ§·½³Ìʽ£º¢Ù2H₂£¨g£©+O₂£¨g£©=2H₂O£¨l£©¡÷H=﹣570kJ/mol£¬

¢ÚH₂£¨g£©+O₂£¨g£©=H₂O£¨g£©¡÷H=﹣241.8kJ/mol£¬

¢ÛC£¨g£©+O₂£¨g£©=CO £¨g£©¡÷H=﹣110.5KJ/moL£¬

¢ÜC£¨s£©+O₂£¨g£©=CO₂£¨g£©¡÷H=﹣393.5KJ/moL£®»Ø´ðÏÂÁи÷ÎÊ£º

£¨1£©ÉÏÊö·´Ó¦ÖÐÊôÓÚ·ÅÈÈ·´Ó¦µÄÊÇ 

£¨2£©CµÄȼÉÕÈÈΪ  

£¨3£©È¼ÉÕ10gH₂Éú³ÉҺ̬ˮ£¬·Å³öµÄÈÈÁ¿Îª  £®

£¨4£©COµÄȼÉÕÈÈΪ   £¬±íʾCOȼÉÕÈȵÄÈÈ»¯Ñ§·½³ÌʽΪ   £®

Answer 1

¿¼µã£º  ÎüÈÈ·´Ó¦ºÍ·ÅÈÈ·´Ó¦£»·´Ó¦ÈȺÍìʱ䣮

רÌ⣺  »¯Ñ§·´Ó¦ÖеÄÄÜÁ¿±ä»¯£®

·ÖÎö£º  £¨1£©¡÷H£¼0µÄ·´Ó¦Îª·ÅÈÈ·´Ó¦£»

£¨2£©È¼ÉÕÈÈÊÇ1mol¿ÉȼÎïÍêȫȼÉÕÉú³ÉÎȶ¨Ñõ»¯Îïʱ·Å³öµÄÈÈÁ¿£»

£¨3£©ÒÀ¾ÝÈÈ»¯Ñ§·½³Ìʽ¢Ù¼ÆËãµÃµ½£»

£¨4£©ÒÀ¾Ý¸Ç˹¶¨ÂɽáºÏÈÈ»¯Ñ§·½³Ìʽ¢Û¢Ü¼ÆËãµÃµ½£»

½â´ð£º  ½â£º£¨1£©£©¡÷H£¼0µÄ·´Ó¦Îª·ÅÈÈ·´Ó¦£¬¢Ù¢Ú¢Û¢Ü·´Ó¦µÄìʱ䶼СÓÚ0£»

¹Ê´ð°¸Îª£º¢Ù¢Ú¢Û¢Ü£»

£¨2£©±íʾCOȼÉÕÈȵÄÈÈ»¯Ñ§·½³ÌʽΪ£ºC£¨s£©+O₂£¨g£©=CO₂£¨g£©¡÷H=﹣393.5KJ/moL£¬¹ÊCOµÄȼÉÕÈÈΪ£º393.5KJ/mol£»

¹Ê´ð°¸Îª£º393.5KJ/mol£»

£¨3£©È¼ÉÕ10gH₂Éú³ÉҺ̬ˮ£¬·Å³öµÄÈÈÁ¿Îªx£¬¸ù¾ÝÏÂÁÐÈÈ»¯Ñ§·½³Ìʽ¼ÆË㣺

  2H₂£¨g£©+O₂ £¨g£©=2H₂O£¨l£©£»¡÷H=﹣570kJ•mol^﹣1

  4g                                 570KJ

  10g                                  x

x=1425KJ£»

¹Ê´ð°¸Îª£º1425KJ£»

£¨3£©ÒÀ¾ÝÈÈ»¯Ñ§·½³Ìʽ£º¢ÛC£¨s£©+O₂ £¨g£©=CO£¨g£©£»¡÷H=﹣110.5kJ•mol^﹣1£»¢ÜC£¨s£©+O₂ £¨g£©=CO₂£¨g£©£»¡÷H=﹣393.5kJ•mol^﹣1 £»

ÒÀ¾Ý¸Ç˹¶¨ÂÉ¢Ü﹣¢ÛµÃµ½£ºCO£¨g£©+O₂£¨g£©=CO₂£¨g£©¡÷H=﹣283KJ/mol

¹Ê´ð°¸Îª£º283KJ/mol£»CO£¨g£©+O₂£¨g£©=CO₂£¨g£©¡÷H=﹣283KJ/mol£®

µãÆÀ£º  ±¾Ì⿼²éÁËȼÉÕÈȵļÆËãÅжϣ¬·´Ó¦ÈÈ»¯Ñ§·½³ÌʽµÄ¼ÆËãÓ¦Ó㬸Ç˹¶¨ÂɵļÆËã·ÖÎö£¬ÌâÄ¿½Ï¼òµ¥£®