ÔÚÒ»¶¨Ìõ¼þÏ£¬CH4ºÍCH3OHµÄȼÉÕµÄÈÈ»¯Ñ§·½³Ìʽ·Ö±ðΪ£º
CH4£¨g£©+2O2£¨g£©=CO2£¨g£©+2H2O£¨g£©¡÷H=-890kJ/mol
CH3OH£¨g£©+1.5O2£¨g£©=CO2£¨g£©+2H2O£¨g£©¡÷H=-750kJ/mol
Èç¹ûÓÐCH4ºÍCH3OHµÄ»ìºÏÆøÌå³ä·ÖȼÉÕ£¬·Å³öµÄÈÈÁ¿Îª806kJ£¬½«Éú³ÉµÄÆøÌåͨ¹ýŨÁòËᣬŨÁòËáÔöÖØ36g£®Ôò»ìºÏÆøÌåÖÐCH4ºÍCH3OHµÄÌå»ý±È
2£º3
2£º3
£®
·ÖÎö£ºÉèCH4µÄÎïÖʵÄÁ¿Îªxmol£»CH3OHµÄÎïÖʵÄÁ¿Îªymol£»
¾Ý´Ë¸ù¾ÝÈÈ»¯Ñ§·½³ÌʽÁгöÆøÌåÎïÖʵÄÁ¿ÓëÈÈÁ¿¹Øϵʽ£¬ÔÙ¸ù¾ÝË®µÄÖÊÁ¿¼´Å¨ÁòËáÔöÖصÄÁ¿£¬ÁгöÆøÌåÎïÖʵÄÁ¿ÓëË®µÄÎïÖʵÄÁ¿¹Øϵʽ£¬È»ºó¸ù¾Ý·½³Ì×éÇó³öCH4ºÍCH3OHµÄÌå»ý±È£®
½â´ð£º½â£ºÉèCH4µÄÎïÖʵÄÁ¿Îªxmol£»CH3OHµÄÎïÖʵÄÁ¿Îªymol£»
Ôò¸ù¾Ý¶þÕßȼÉÕÉú³ÉµÄË®µÄÁ¿ºÍ·´Ó¦·Å³öµÄÈÈÁ¿Áз½³ÌΪ£º
2x+2y=
36g
18g/mol
890x+750y=806kJ

½âµÃ£º
x
y
=
2
3
£¬¼´»ìºÏÆøÌåÖÐCH4ºÍCH3OHµÄÌå»ý±ÈΪ2£º3£»
¹Ê´ð°¸Îª£º2£º3£®
µãÆÀ£º±¾Ì⿼²éѧÉúÀûÓÃÈÈ»¯Ñ§·´Ó¦·½³ÌʽµÄ¼ÆË㣬Ã÷È·ÈÈ»¯Ñ§·½³ÌʽÖз´Ó¦ÈÈÓëÎïÖʵÄÁ¿µÄ¹ØϵÊǹؼü£¬ÌâÄ¿ÄѶȲ»´ó£®
Á·Ï°²áϵÁдð°¸
Ïà¹ØÏ°Ìâ

¿ÆÄ¿£º¸ßÖл¯Ñ§ À´Ô´£º ÌâÐÍ£º

ÒÑÖªÔÚÒ»¶¨Ìõ¼þÏ£¬CH4ÓëNO2´æÔÚÒÔÏ¿ÉÄæ·´Ó¦£ºCH4£¨g£©+4NO2£¨g£©  4NO£¨g£©+CO2£¨g£©+2H2O£¨g£©£»¡÷H=-x 
kJ/mol£¬ÏÖÈ¡12mol CH4ÓëNO2µÄ»ìºÏÎïÔÚ¸ÃÌõ¼þÏ·´Ó¦ÖÁƽºâʱ£¬¹²×ªÒƵç×Ó16mol£¬²¢·Å³öÈÈÁ¿1148kJ£¬Ôò¸Ã·´Ó¦ÖеÄxÖµ¼°12mol»ìºÏÆøÌåÖÐCH4ÓëNO2µÄÎïÖʵÄÁ¿Ö®±ÈΪ£¨¡¡¡¡£©

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖл¯Ñ§ À´Ô´£º2013½ìÌì½òÊи߶þÉÏѧÆÚÆÚÖп¼ÊÔ»¯Ñ§ÊÔ¾í£¨½âÎö°æ£© ÌâÐÍ£º¼ÆËãÌâ

ÔÚÒ»¶¨Ìõ¼þÏ£¬CH4ºÍCH3OHµÄȼÉÕµÄÈÈ»¯Ñ§·½³Ìʽ·Ö±ðΪ£º

CH4(g)£«2O2(g)£½CO2(g) £« 2H2O(g)¡¡ ¦¤H£½£­890kJ/mol

CH3OH(g)£«1.5O2(g)£½CO2(g) + 2H2O(g) ¦¤H£½£­750kJ/mol

Èç¹ûÓÐCH4ºÍCH3OHµÄ»ìºÏÆøÌå³ä·ÖȼÉÕ£¬·Å³öµÄÈÈÁ¿Îª806kJ£¬½«Éú³ÉµÄÆøÌåͨ¹ýŨÁòËᣬŨÁòËáÔöÖØ36g¡£Ôò»ìºÏÆøÌåÖÐCH4ºÍCH3OHµÄÌå»ý±È________¡£

 

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖл¯Ñ§ À´Ô´£º2013½ìÌì½òÒ»Öи߶þÉÏѧÆÚÆÚÖп¼ÊÔ»¯Ñ§ÊÔ¾í ÌâÐÍ£ºÌî¿ÕÌâ

ÔÚÒ»¶¨Ìõ¼þÏ£¬CH4ºÍCH3OHµÄȼÉÕµÄÈÈ»¯Ñ§·½³Ìʽ·Ö±ðΪ£º

CH4(g)£«2O2(g)£½CO2(g) £« 2H2O(g)¡¡ ¦¤H£½£­890kJ/mol

CH3OH(g)£«1.5O2(g)£½CO2(g) + 2H2O(g) ¦¤H£½£­750kJ/mol

Èç¹ûÓÐCH4ºÍCH3OHµÄ»ìºÏÆøÌå³ä·ÖȼÉÕ£¬·Å³öµÄÈÈÁ¿Îª806kJ£¬½«Éú³ÉµÄÆøÌåͨ¹ýŨÁòËᣬŨÁòËáÔöÖØ36g¡£Ôò»ìºÏÆøÌåÖÐCH4ºÍCH3OHµÄÌå»ý±È________¡£

 

²é¿´´ð°¸ºÍ½âÎö>>

¿ÆÄ¿£º¸ßÖл¯Ñ§ À´Ô´£º2011ÄêËÄ´¨Ê¡³É¶¼ÆßÖи߿¼»¯Ñ§Ä£ÄâÊÔ¾í£¨Ò»£©£¨½âÎö°æ£© ÌâÐÍ£ºÑ¡ÔñÌâ

ÒÑÖªÔÚÒ»¶¨Ìõ¼þÏ£¬CH4ÓëNO2´æÔÚÒÔÏ¿ÉÄæ·´Ó¦£ºCH4£¨g£©+4NO2£¨g£©  4NO£¨g£©+CO2£¨g£©+2H2O£¨g£©£»¡÷H=-x 
kJ/mol£¬ÏÖÈ¡12mol CH4ÓëNO2µÄ»ìºÏÎïÔÚ¸ÃÌõ¼þÏ·´Ó¦ÖÁƽºâʱ£¬¹²×ªÒƵç×Ó16mol£¬²¢·Å³öÈÈÁ¿1148kJ£¬Ôò¸Ã·´Ó¦ÖеÄxÖµ¼°12mol»ìºÏÆøÌåÖÐCH4ÓëNO2µÄÎïÖʵÄÁ¿Ö®±ÈΪ£¨ £©
A£®x=1148£¬
B£®x=574£¬
C£®x=574£¬
D£®x=574£¬

²é¿´´ð°¸ºÍ½âÎö>>

ͬ²½Á·Ï°²á´ð°¸