Question

ÔÚ25¡æ¡¢101kPaÏ£¬1g¼×´¼È¼ÉÕÉú³ÉCO₂ºÍҺ̬ˮʱ·ÅÈÈ22.68kJ£¬ÏÂÁÐÈÈ»¯Ñ§·½³ÌʽÕýÈ·µÄÊÇ

A£®CH3OH£¨l£©+3/2O2£¨g£©===CO2£¨g£©+2H2O£¨l£©¡÷H=£«725.8 kJ/mol

B£®2CH3OH£¨l£©+3O2£¨g£©===2CO2£¨g£©+4H2O£¨l£©¡÷H=£­1452 kJ/mol

C£®2CH3OH£¨l£©+3O2£¨g£©===2CO2£¨g£©+4H2O£¨l£©¡÷H=£­725.8 kJ/mol

D£®2CH3OH£¨l£©+3O2£¨g£©===2CO2£¨g£©+4H2O£¨l£©¡÷H=£«1452 kJ/mol

Answer 1

B

·Å³öÈÈÁ¿ÔÚÈÈ»¯Ñ§·½³ÌʽÖÐÒÔ¡°¡ª¡±±íʾ£¬ÅųýAD
ÔÚÌâÉèÌõ¼þÏ¿ÉÇóµÃ1 mol¼×´¼ÍêȫȼÉշųöµÄÈÈÁ¿Îª22.68kJ¡Á32="725.8" kJ£¬¶ø2 mol¼×´¼ÍêȫȼÉշųöµÄÈÈÁ¿Îª1452 kJ£¬¹ÊÑ¡ÏîB·ûºÏÌâÒâ