题目
题型:海南难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20200108/20200108033047-59571.bmp)
![](http://img.shitiku.com.cn/uploads/allimg/20200108/20200108033047-59571.bmp)
C(s)+O2(g)=CO2(g)△H=-393.5kJ•mol-1
则2Fe(s)+
![](http://img.shitiku.com.cn/uploads/allimg/20200108/20200108033047-59571.bmp)
A.-824.4kJ•mol- | B.-627.6kJ•mol-1 | |||||||||||||||||||
C.-744.7kJ•mol-1 | D.-169.4kJ•mol-1 | |||||||||||||||||||
S(单斜)和S(正交)是硫元素的两种单质. 已知:①S(单斜,s)+O2(g)═SO2(g)△H1=-297.16kJ•mol-1 ②S(正交,s)+O2(g)═SO2(g)△H2=-296.83kJ•mol-1 ③S(单斜,s)═S(正交,s)△H3 下列说法正确的是( )
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