(1)2N2H4(g)+2NO2(g)=3N2(g)+4H2O(g),△H=-1135.7kJ·mol-1 (2)327.93 查看更多

 

题目列表(包括答案和解析)

长征二号捆绑式火箭推进剂以肼(N2H4)作为燃料,NO2作为氧化剂,反应生成N2和水蒸气。已知:N2(g)+ 2O2(g) =2NO2(g);       △H=+67.7 kJ/mol

N2H4(g) + O2(g) = N2(g) + 2H2O(g);        △H=-534 kJ/mol

下列关于肼和NO2反应的热化学方程式中,正确的是

A.2N2H4(g)+ 2NO2(g) = 3N2(g) + 4H2O(l);△H=-1135.7kJ/mol

B.N2H4(g)+ NO2(g) = 3/2N2(g) + 2H2O(g);△H=-567.85kJ/mol

C.N2H4(g)+ NO2(g) = 3/2N2(g) + 2H2O(l);△H=-1135.7kJ/mol

D.2N2H4(g)+ 2NO2(g) = 3N2(g) + 4H2O(g);△H=+1135.7kJ/mol

 

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长征二号捆绑式火箭推进剂以肼(N2H4)作为燃料,NO2作为氧化剂,反应生成N2和水蒸气.已知:N2(g)+2O2(g)=2NO2(g);△H=+67.7kJ/mol,N2H4(g)+O2(g)=N2(g)+2H2O(g);△H=-534kJ/mol下列关于肼和NO2反应的热化学方程式中,正确的是

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A.

2N2H4(g)+2NO2(g)=3N2(g)+4H2O(l);△H=-1135.7kJ/mol

B.

2N2H4(g)+2NO2(g)=3N2(g)+4H2O(g);△H=-1000.3kJ/mol

C.

N2H4(g)+NO2(g)=N2(g)+2H2O(l);△H=-1135.7kJ/mol

D.

2N2H4(g)+2NO2(g)=3N2(g)+4H2O(g);△H=-1135.7kJ/mol

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