ÌâÄ¿ÄÚÈÝ
ÇâÆø£¨H2£©¡¢Ò»Ñõ»¯Ì¼£¨CO£©¡¢ÐÁÍ飨C8H18£©¡¢¼×Í飨CH4£©µÄÈÈ»¯Ñ§·½³Ìʽ·Ö±ðΪ£º
H2£¨g£©+
O2£¨g£©£½H2O£¨l£©£»¡÷H=£285.8kJ/mol
CO£¨g£©+
O2£¨g£©£½CO2£¨g£©£»¡÷H=£283.0kJ/mol
C8H18£¨l£©+
O2£¨g£©£½8CO2£¨g£©+9H2O£¨l£©£»¡÷H=£5518kJ/mol
CH4£¨g£©+2O2£¨g£©£½CO2£¨g£©+2H2O£¨l£©£»¡÷H=£890.3kJ/mol
ÏàͬÖÊÁ¿µÄH2¡¢CO¡¢C8H18¡¢CH4ÍêȫȼÉÕʱ£¬·Å³öÈÈÁ¿×îÉÙµÄÊÇ£¨ £©
A£®H2£¨g£© B£®CO£¨g£© C£®C8H18 £¨l£© D£®CH4£¨g£©
B
Á·Ï°²áϵÁдð°¸
Ïà¹ØÌâÄ¿