已知在25 ℃时:2C(s)+O2(g)=2CO(g) △H1=-222 kJ/mol
2H2(g)+O2(g)=2H2O(g) △H2=-484 kJ/mol
C(s)+O2(g)=CO2(g) △H3=-394 kJ/mol
则25 ℃时,CO(g)+H2O(g)=CO2(g)+H2(g)的反应热 △H4为
A.-82 kJ/mol | B.-41 kJ/mol |
C.-312 kJ/mol | D.+82 kJ/mol |
已知在25 ℃时:2C(s)+O2(g)=2CO(g) △H1=-222 kJ/mol
2H2(g)+O2(g)=2H2O(g) △H2=-484 kJ/mol
C(s)+O2(g)=CO2(g) △H3=-394 kJ/mol
则25 ℃时,CO(g)+H2O(g)=CO2(g)+H2(g)的反应热 △H4为
A.-82 kJ/mol | B.-41 kJ/mol |
C.-312 kJ/mol | D.+82 kJ/mol |
试题篮
()