已知Zn(s)+1/2O2(g)→ZnO(s)△rHθm(1)=-351.5kJ·mol-1Hg(l)+1/2O2(g)→HgO(s,红)△rHθm(2)=-90.8kJ·mol-1则ZnO(s)+Hg(l)→Zn(s)+HgO(s,红)的△rHθm为()kJ·mol-1
已知Zn(s)+1/2O2(g)→ZnO(s)△rHθm(1)=-351.5kJ·mol-1Hg(l)+1/2O2(g)→HgO(s,红)△rHθm(2)=-90.8kJ·mol-1则ZnO(s)+Hg(l)→Zn(s)+HgO(s,红)的△rHθm为()kJ·mol-1
A.442.3
B.260.7
C.-260.7
D.-442.3
正确答案:B
Tag:已知
时间:2021-08-08 14:52:23
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