Question

2003年10月15日我国成功发射了第一艘载人航天飞船——“神州五号”．从此我国进入了航天大国和航天强国行列．发射“神五”时用肼(N2H4)作为火箭发动机要的燃料，NO2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)＝3/2N2(g)＋2H2O(l)；△H＝–1135.7kJ/mol
D．	2N2H4(g)＋2NO2(g)＝3N2(g)＋4H2O(g)；△H＝–1135.7kJ/mol．

Answer 1

答案：D