下列依据热化学方程式得出的结论正确的是

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下列依据热化学方程式得出的结论正确的是（　　）

A：已知NaOH（aq）+HCl（aq）=NaCl（aq）+H₂O（l）△H=﹣57.3KJ/mol，则40gNaOH固体与稀盐酸完全反应，放出的热量即为57.3KJ

B：已知C（s）+O₂（g）=CO₂（g）△H₁C（s）+ $\frac{1}{2} O_{2}$ （g）=CO（g）△H₂则△H₁＜△H₂

C：已知H₂（g）+Cl₂（g）=2HCl，△H=﹣184.6KJ/mol，则反应物总能量小于生成物总能量

D：已知P（白磷，s）=P（红磷，s）△H＜0，则白磷比红磷稳定

上一题下一题 0.0难度选择题更新时间:2015-05-20 10:35:14

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B

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The bird and the tree are friends．The bird often sings songs in the tree．Autumn comes．The bird has to fly to the south．Spring comes.The bird comes back，but she can’t see the tree．Grass tell her some workers cut the tree down and took him to a factory．Then the bird flies to the factory．The workers told her they cut the tree into wood．They used the wood to make matches．Then they took the matches to a village．The bird flies to the village and sees a girl used the last match to make the fire．The bird sings a sad song to the fire．


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A竹叶	B图画	C水珠	D伞	E红果

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