ÌâÄ¿ÄÚÈÝ
ÒÑÖªÔÚ25¡æ¡¢101.3KpaÏ£¬1Ħ¶ûCH4ÆøÌå³ä·ÖȼÉշųöÈÈÁ¿Îª890KJ£¬Ð´³ö¸Ã·´Ó¦µÄÈÈ»¯Ñ§·½³Ìʽ
CH4£¨g£©+2O2£¨g£©¨TCO2£¨g£©+2H2O£¨l£©¡÷H=-890KJ/mol
CH4£¨g£©+2O2£¨g£©¨TCO2£¨g£©+2H2O£¨l£©¡÷H=-890KJ/mol
£¬¼ÆËãÈôȼÉÕ1Á¢·½Ã×CH4ÆøÌåÓ¦·Å³öÈÈÁ¿Îª¶àÉÙKJ£¿3.97¡Á104kJ
3.97¡Á104kJ
СÃ÷¼ÒÿÔÂƽ¾ùÓÃ15Á¢·½Ã×CH4ÆøÌ壬һÄêÏûºÄµÄÈÈÁ¿Îª¶àÉÙKJ£¿7.15¡Á106kJ
7.15¡Á106kJ
£®£¨¼×ÍéÌå»ýÒÑÕÛËãΪ±ê×¼×´¿öÏ£©·ÖÎö£º¸ù¾ÝÈÈ»¯Ñ§·½³ÌʽµÄÊéд¿ÉÖª£¬»¯Ñ§¼ÆÁ¿ÊýÓë·´Ó¦ÈȳÉÕý±È£¬²¢±êÃ÷ÎïÖʵľۼ¯×´Ì¬Óë·´Ó¦ÈÈ£¬ÒÀ¾ÝÔÔòÊéдÈÈ»¯Ñ§·½³Ìʽ£»
¼ÆËã1Á¢·½Ã×¼×ÍéµÄÎïÖʵÄÁ¿£¬½áºÏ1Ħ¶ûCH4ÆøÌå³ä·ÖȼÉշųöÈÈÁ¿¼ÆËã1Á¢·½Ã×CH4ȼÉշųöµÄÈÈÁ¿£¬½ø¶ø¼ÆËã1ÄêÏûºÄµÄÈÈÁ¿£®
¼ÆËã1Á¢·½Ã×¼×ÍéµÄÎïÖʵÄÁ¿£¬½áºÏ1Ħ¶ûCH4ÆøÌå³ä·ÖȼÉշųöÈÈÁ¿¼ÆËã1Á¢·½Ã×CH4ȼÉշųöµÄÈÈÁ¿£¬½ø¶ø¼ÆËã1ÄêÏûºÄµÄÈÈÁ¿£®
½â´ð£º½â£ºÔÚ25¡æ¡¢101.3KpaÏ£¬1Ħ¶ûCH4ÆøÌå³ä·ÖȼÉշųöÈÈÁ¿Îª890KJ£¬·´Ó¦ÉúµÄˮΪҺÌ壬ÔòÈÈ»¯Ñ§·½³ÌʽΪ£ºCH4£¨g£©+2O2£¨g£©¨TCO2£¨g£©+2H2O£¨l£©¡÷H=-890KJ/mol£»
1Á¢·½Ã×¼×ÍéµÄÎïÖʵÄÁ¿Îª=
=
mol£¬ÍêȫȼÉշųöµÄÈÈÁ¿Îª
mol¡Á890KJ/mol=3.97¡Á104kJ£»
СÃ÷¼ÒÿÔÂƽ¾ùÓÃ15Á¢·½Ã×CH4ÆøÌ壬һÄêÏûºÄµÄÈÈÁ¿=3.97¡Á104kJ¡Á15¡Á12=7.15¡Á106kJ£¬
¹Ê´ð°¸Îª£ºCH4£¨g£©+2O2£¨g£©¨TCO2£¨g£©+2H2O£¨l£©¡÷H=-890KJ/mol£»3.97¡Á104kJ£»7.15¡Á106kJ£®
1Á¢·½Ã×¼×ÍéµÄÎïÖʵÄÁ¿Îª=
1000L |
22.4L/mol |
1000 |
22.4 |
1000 |
22.4 |
СÃ÷¼ÒÿÔÂƽ¾ùÓÃ15Á¢·½Ã×CH4ÆøÌ壬һÄêÏûºÄµÄÈÈÁ¿=3.97¡Á104kJ¡Á15¡Á12=7.15¡Á106kJ£¬
¹Ê´ð°¸Îª£ºCH4£¨g£©+2O2£¨g£©¨TCO2£¨g£©+2H2O£¨l£©¡÷H=-890KJ/mol£»3.97¡Á104kJ£»7.15¡Á106kJ£®
µãÆÀ£º±¾Ì⿼²éÈÈ»¯Ñ§·½³ÌʽµÄÊéд¡¢·´Ó¦ÈȵÄÓйؼÆË㣬ÄѶȲ»´ó£¬×¢Òâ¶Ô»ù´¡ÖªÊ¶µÄÀí½âÕÆÎÕ£®
![](http://thumb2018.1010pic.com/images/loading.gif)
Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿