题目内容
1mol碳完全燃烧后可放出393.5KJ的热量，下列热化学方程式正确的是
A．C(s)+O2(g)=CO2(g)；△H=+393.5kJ/mol
B．C(s)+
O2(g)=CO(g)；△H=－393.5kJ/mol
C．C+O2=CO2；△H=－393.5kJ/mol
D．C(s)+O2(g)=CO2(g)；△H=－393.5kJ/mol
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题目内容
1mol碳完全燃烧后可放出393.5KJ的热量，下列热化学方程式正确的是
A．C(s)+O2(g)=CO2(g)；△H=+393.5kJ/mol
B．C(s)+O2(g)=CO(g)；△H=－393.5kJ/mol
C．C+O2=CO2；△H=－393.5kJ/mol
D．C(s)+O2(g)=CO2(g)；△H=－393.5kJ/mol
B．
C．
D．
