ÌâÄ¿ÄÚÈÝ

£¨9·Ö£©

£¨1£©¼ÒÓÃÒº»¯ÆøµÄÖ÷Òª³É·ÖÖ®Ò»ÊǶ¡Í飨C4H10£©£¬µ±1 kg¶¡ÍéÍêȫȼÉÕÉú³É¶þÑõ»¯Ì¼ºÍҺ̬ˮʱ£¬·Å³öÈÈÁ¿Îª5¡Á104kJ£¬ÊÔд³ö±íʾ¶¡ÍéȼÉÕÈȵÄÈÈ»¯Ñ§·½³Ìʽ£º                              

£¨2£©ÒÑÖª£ºC£¨s£©£«O2£¨g£©£½CO2£¨g£©     ¦¤H£½£­393.5 kJ¡¤mol£­1

2H2£¨g£©£«O2£¨g£©£½2H2O£¨g£©  ¦¤H£½£­483.6 kJ¡¤mol£­1

ÏÖÓÐ0.2 molµÄÌ¿·ÛºÍÇâÆø×é³ÉµÄÐü¸¡Æø£¬ÇÒ»ìºÏÎïÔÚÑõÆøÖÐÍêȫȼÉÕ£¬¹²·Å³ö63.53 kJÈÈÁ¿£¬Ôò»ìºÏÎïÖÐCÓëH2µÄÎïÖʵÄÁ¿Ö®±ÈΪ         

£¨3£©¸Ç˹¶¨ÂÉÔÚÉú²úºÍ¿ÆѧÑо¿ÖÐÓкÜÖØÒªµÄÒâÒå¡£ÓÐЩ·´Ó¦µÄ·´Ó¦ÈÈËäÈ»ÎÞ·¨Ö±½Ó²âµÃ£¬µ«¿Éͨ¹ý¼ä½ÓµÄ·½·¨²â¶¨¡£ÏÖ¸ù¾ÝÏÂÁÐ3¸öÈÈ»¯Ñ§·´Ó¦·½³Ìʽ£º

   Fe2O3(s)+3CO(g)== 2Fe(s)+3CO2(g)        ¡÷H£½¡ª24.8 kJ¡¤mol£­1

   3Fe2O3(s)+ CO(g)==2Fe3O4(s)+ CO2(g)      ¡÷H£½¡ª47.4 kJ¡¤mol£­1

Fe3O4(s)+CO(g)==3FeO(s)+CO2(g)         ¡÷H£½ +640.5 kJ¡¤mol£­1

д³öCO(g)»¹Ô­FeO(s)µÃµ½Fe (s)ÌåºÍCO2(g)µÄÈÈ»¯Ñ§·´Ó¦·½³Ìʽ£º                              

 

¡¾´ð°¸¡¿

£¨1£©C4H10£¨g£©+13/2O2£¨g£©£½4CO2£¨g£©+5H2O£¨l£©  ¡÷H£½¨D2900 mol¡¤L-1£¨3·Ö£©

£¨2£©1£º1  £¨3·Ö£©

£¨3£©CO(g)+FeO(s) == Fe(s)+CO2(g)    ¡÷H£½¨D218.0 mol¡¤L-1£¨3·Ö£©

¡¾½âÎö¡¿£¨1£©È¼ÉÕÈÈÊÇÖ¸ÔÚÒ»¶¨Ìõ¼þÏ£¬1mol¿ÉȼÎïÍêÈ«Éú³ÉÎȶ¨µÄÑõ»¯ÎïʱËù·Å³öµÄÈÈÁ¿£¬ËùÒÔ1mol¶¡ÍéȼÉշųöµÄÈÈÁ¿ÊÇ£¬ËùÒÔÈÈ»¯Ñ§·½³ÌʽΪC4H10£¨g£©+13/2O2£¨g£©£½4CO2£¨g£©+5H2O£¨l£©  ¡÷H£½¨D2900 mol¡¤L-1¡£

£¨2£©ºÏÎïÖÐCÓëH2µÄÎïÖʵÄÁ¿·Ö±ðÊÇxºÍy£¬Ôòx£«y£½0.2¡¢393.5x£«241.8y£½63.53£¬½âµÃx£½y£½0.1mol£¬¼´¶þÕßµÄÎïÖʵÄÁ¿Ö®±ÈÊÇ1©U1¡£

£¨3£©¿¼²é¸Ç˹¶¨ÂɵÄÓ¦Ó᣸ù¾ÝÒÑÖª·´Ó¦¿ÉÖª£¬£¨¢Ù¡Á3£­¢Ú£­¢Û¡Á2£©¡Â6¼´µÃµ½CO(g)+FeO(s) == Fe(s)+CO2(g) £¬ËùÒÔ¡÷H£½£¨¡ª24.8 kJ¡¤mol£­1£«47.4 kJ¡¤mol£­1£­640.5 kJ¡¤mol£­1¡Á2£©¡Â6£½¨D218.0 mol¡¤L-1¡£

 

Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿
£¨1£©¼ÒÓÃÒº»¯ÆøµÄÖ÷Òª³É·ÖÖ®Ò»ÊǶ¡Í飨C4H10£©£¬µ±1kg¶¡ÍéÍêȫȼÉÕÉú³É¶þÑõ»¯Ì¼ºÍҺ̬ˮʱ£¬·Å³öÈÈÁ¿Îª5¡Á104kJ£¬ÊÔд³ö±íʾ¶¡ÍéȼÉÕÈȵÄÈÈ»¯Ñ§·½³Ìʽ£º
C4H10£¨g£©+13/2O2£¨g£©=4CO2£¨g£©+5H2O£¨l£©¡÷H=-2900mol?L-1
C4H10£¨g£©+13/2O2£¨g£©=4CO2£¨g£©+5H2O£¨l£©¡÷H=-2900mol?L-1

£¨2£©ÒÑÖª£ºC£¨s£©+O2£¨g£©=CO2£¨g£©¡÷H=-393.5kJ?mol-1
2H2£¨g£©+O2£¨g£©=2H2O£¨g£©¡÷H=-483.6kJ?mol-1
ÏÖÓÐ0.2molµÄÌ¿·ÛºÍÇâÆø×é³ÉµÄÐü¸¡Æø£¬ÇÒ»ìºÏÎïÔÚÑõÆøÖÐÍêȫȼÉÕ£¬¹²·Å³ö63.53kJÈÈÁ¿£¬Ôò»ìºÏÎïÖÐCÓëH2µÄÎïÖʵÄÁ¿Ö®±ÈΪ
1£º1
1£º1

£¨3£©¸Ç˹¶¨ÂÉÔÚÉú²úºÍ¿ÆѧÑо¿ÖÐÓкÜÖØÒªµÄÒâÒ壮ÓÐЩ·´Ó¦µÄ·´Ó¦ÈÈËäÈ»ÎÞ·¨Ö±½Ó²âµÃ£¬µ«¿Éͨ¹ý¼ä½ÓµÄ·½·¨²â¶¨£®ÏÖ¸ù¾ÝÏÂÁÐ3¸öÈÈ»¯Ñ§·´Ó¦·½³Ì£¬
Cu£¨s£©+2H+£¨aq£©=Cu2+£¨aq£©+H2£¨g£©¡÷H=+64.39kJ?mol-1
2H2O2£¨l£©=2H2O£¨l£©+O2£¨g£©¡÷H=-196.46kJ?mol-1
H2£¨g£©+
12
O2£¨g£©=H2O£¨l£©¡÷H=-285.84kJ?mol-1
Íê³ÉÏÂÁÐÎÊÌ⣺ÔÚ H2SO4ÈÜÒºÖÐCuÓëH2O2·´Ó¦Éú³ÉCu2+ºÍH2OµÄÈÈ»¯Ñ§·½³ÌʽΪ
Cu£¨s£©+H2O2£¨l£©+2H+£¨aq£©=Cu2+£¨aq£©+2H2O£¨l£©¡÷H=-319.68KJ?mol-1
Cu£¨s£©+H2O2£¨l£©+2H+£¨aq£©=Cu2+£¨aq£©+2H2O£¨l£©¡÷H=-319.68KJ?mol-1
£®
£¨1£©¼ÒÓÃÒº»¯ÆøµÄÖ÷Òª³É·ÖÖ®Ò»ÊǶ¡Í飨C4H10£©£¬µ±1kg¶¡ÍéÍêȫȼÉÕÉú³É¶þÑõ»¯Ì¼ºÍҺ̬ˮʱ£¬·Å³öÈÈÁ¿Îª5¡Á104kJ£¬ÊÔд³ö±íʾ¶¡ÍéȼÉÕÈȵÄÈÈ»¯Ñ§·½³Ìʽ£º
C4H10£¨g£©+
13
2
O2£¨g£©=4CO2£¨g£©+H2O£¨l£©¡÷H=-2900KJ/mol
C4H10£¨g£©+
13
2
O2£¨g£©=4CO2£¨g£©+H2O£¨l£©¡÷H=-2900KJ/mol

£¨2£©ÒÑÖª£ºC£¨s£©+O2£¨g£©=CO2£¨g£©¡÷H=-393.5kJ?mol-1
2H2£¨g£©+O2£¨g£©=2H2O£¨g£©¡÷H=-483.6kJ?mol-1
ÏÖÓÐ0.2molµÄÌ¿·ÛºÍÇâÆø×é³ÉµÄÐü¸¡Æø£¬ÇÒ»ìºÏÎïÔÚÑõÆøÖÐÍêȫȼÉÕ£¬¹²·Å³ö63.53kJÈÈÁ¿£¬Ôò»ìºÏÎïÖÐCÓëH2µÄÎïÖʵÄÁ¿Ö®±ÈΪ
1£º1
1£º1

£¨3£©¸Ç˹¶¨ÂÉÔÚÉú²úºÍ¿ÆѧÑо¿ÖÐÓкÜÖØÒªµÄÒâÒ壮ÓÐЩ·´Ó¦µÄ·´Ó¦ÈÈËäÈ»ÎÞ·¨Ö±½Ó²âµÃ£¬µ«¿Éͨ¹ý¼ä½ÓµÄ·½·¨²â¶¨£®ÏÖ¸ù¾ÝÏÂÁÐ3¸öÈÈ»¯Ñ§·´Ó¦·½³Ìʽ£º
Fe2O3£¨s£©+3CO£¨g£©¨T2Fe£¨s£©+3CO2£¨g£©¡÷H=-24.8kJ?mol-1
3Fe2O3£¨s£©+CO£¨g£©¨T2Fe3O4£¨s£©+CO2£¨g£©¡÷H=-47.4kJ?mol-1
Fe3O4£¨s£©+CO£¨g£©¨T3FeO£¨s£©+CO2£¨g£©¡÷H=+640.5kJ?mol-1
д³öCO£¨g£©»¹Ô­FeO£¨s£©µÃµ½Fe£¨s£©ÌåºÍCO2£¨g£©µÄÈÈ»¯Ñ§·´Ó¦·½³Ìʽ£º
CO£¨g£©+FeO£¨s£©=Fe£¨s£©+CO2£¨g£©¡÷H=-218.0KJ/mol
CO£¨g£©+FeO£¨s£©=Fe£¨s£©+CO2£¨g£©¡÷H=-218.0KJ/mol
£®

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

¾«Ó¢¼Ò½ÌÍø