題目列表(包括答案和解析)
已知反應(yīng):(1)C(s)+ O2(g)==CO2(g) △H = -393.5kJ/mol
(2)2CO(g)+ O2(g)==2CO2(g) △H = -566.0kJ/mol
則反應(yīng): C(s)+ 1/2O2(g)==CO(g)的△H為
A.-221 kJ/mol B.-110.5 kJ/mol C.+110.5 kJ/mol D.+221 kJ/mol
已知在298K時下述反應(yīng)的有關(guān)數(shù)據(jù):
C(s)+1/2 O2(g) === CO(g) △H1 = -110.5 kJ• mol-1
C(s)+O2(g) === CO2(g) △H2= -393.5 kJ• mol-1
則C(s)+CO2(g) === 2CO(g) 的△H 為( )
A. +283.5 kJ• mol-1 B. +172.5 kJ• mol-1
C. -172.5kJ• mol-1 D. -504 kJ• mol-1
已知在298K時下述反應(yīng)的有關(guān)數(shù)據(jù):
C(s)+1/2 O2(g)=CO(g) △H1 = -110.5kJ/mol
C(s)+O2(g)=CO2(g),△H 2= -393.5kJ/mol
則C(s)+CO2(g)=2CO(g) 的△H ( )
A.283.5kJ/mo B 172.5kJ/mol C -172.5kJ/mol D.-504 kJ/mol
已知在298K時下述反應(yīng)的有關(guān)數(shù)據(jù):
C(s)+1/2 O2(g)=CO(g) △H1 = -110.5kJ/mol
C(s)+O2(g)=CO2(g),△H 2= -393.5kJ/mol
則C(s)+CO2(g)=2CO(g) 的△H ( )
A.283.5kJ/mo B 172.5kJ/mol C -172.5kJ/mol D.-504 kJ/mol
已知在298K時下述反應(yīng)的有關(guān)數(shù)據(jù):
C(s)+1/2 O2(g)=CO(g) △H1 = -110.5kJ/mol
C(s)+O2(g)=CO2(g),△H 2= -393.5kJ/mol
則C(s)+CO2(g)=2CO(g) 的△H ( )
A.283.5kJ/mo B 172.5kJ/mol C -172.5kJ/mol D.-504 kJ/mol
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