已知2H2(g)+O2=2H2O(l)△H=-571.6kj/molCO(g)+1/2O2(g)=CO2(g)△H=-2
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已知2H2(g)+O2=2H2O(l)△H=-571.6kj/molCO(g)+1/2O2(g)=CO2(g)△H=-283kj/mol
某H2和CO的混合气体完全燃烧放出113.74KJ的热量,同时生成3.6g的液态水,则原混合气体中H2和CO的物质的量之比为?解析..)
某H2和CO的混合气体完全燃烧放出113.74KJ的热量,同时生成3.6g的液态水,则原混合气体中H2和CO的物质的量之比为?解析..)
2H2(g)+O2=2H2O(l)△H=-571.6kj/mol CO(g)+1/2O2(g)=CO2(g)△H=-283kj/mol 2mol 36g 571.6kJ 1mol 283kJ
x 3.6g 57.16kJ y (113.74-57.16)kJ
解得x=0.2mol,y=0.2mol,即x:y=1:1
x 3.6g 57.16kJ y (113.74-57.16)kJ
解得x=0.2mol,y=0.2mol,即x:y=1:1
已知2H2(g)+O2=2H2O(l)△H=-571.6kj/molCO(g)+1/2O2(g)=CO2(g)△H=-2
已知2H2(g)+O2(g)=2H2O(l);△H=-571.6kJ/mol,C3H8(g)+5O2(g)=3CO2(g
已知:2H2(g)+O2(g)=2H2O(l) △H=-571.6kj/mol 2h2(g)+O2(g)=2H2O(g)
已知:CH4(g)+2O2(g)=CO2(g)+2H2O(l)△H=-890.3 KJ*mol-1H2(g)+0.5O2
关于化学反应热的计算已知2H2(g)+O2(g)==2H2O(l) △H=-571.6KJ/molCO(g)+1/2O2
已知:2H2(g)+O2(g)═2H2O(l)△H=-571.6kJ•mol-1;CH4(g)+2O2(g)═CO2(g
已知:2H2(g)+O2(g)=2H2O(l) △H=571.6kj/mol
2H2(g)+O2(g)=2H2O (l) H=-571.6kj/mol
已知2H2(g)+O2(g)==2H2O(l) △H=-571.6KJ/mol CH4(g)+2O2(g)==CO2(g
已知:2H2(g)+O2(g)=2H2O(l) △H=-571.6KJ/mol CH4(g)+2O2(g)=CO2(g)
已知2H2O(L)=2H2(g)+O2(g) △H=+571.6kJ/mol CH4(g)+2O2(g)=CO2(g)+
已知2H2(g)+O2(g)==2H2O(l) △H=-571.6KJ/mol CO(g)+1/2O2(g)==CO2(