根据下列两个热化学方程式;A.Zn(s)+1/2O2(g)=ZnO(S),△H=-351.5kJ·mol-1 B.Hg(l)+1/2O2(g)=HgO(s),△,H=-90.8kJ,mol-1 由此可知,反应Zn(s)+HgO(s)=Hg(l)+ZnO(s)的△H等于
举一反三
- 已知: Zn(s) + 1/2 O 2 (g) = ZnO(s) ∆ r H m q 1 = -351.5 kJ · mol -1 Hg(l) + 1/2 O 2 (g) = HgO(s , 红 ) ∆ r H m q 2 = -90.8 kJ · mol -1 则 Zn(s) + HgO(s , 红 ) = ZnO(s) + Hg(l) 的 ∆ r H m q 为( ) (kJ · mol -1 )
- 已知Zn(s) + 1/2O2(g) = Zn (s), ∆rHmӨ= -348.28 kJ·mol-1Hg(l) + 1/2O2(g) = HgO(s), ∆rHmӨ= -90.83 kJ·mol-1则Zn(s) + HgO(s) = ZnO(s) + Hg(l)的∆rHmӨ是
- 已知:Zn(s)+(1/2)O2 = ZnO 0394cHm=351.5 kJ00b7mol-1 Hg(l)+(1/2)O2 = HgO 0394cHm= 90.8 kJ00b7mol-1 因此 Zn+HgO = ZnO+Hg 的0394rHm是:
- 已知:Zn(s)+(1/2)O2 ---> ZnO ΔcHm=351.5 kJ/... ---> ZnO+Hg 的ΔrHm是:
- 下列反应在任何温度下均能自发进行的是( ) 未知类型:{'options': ['2N2(g)+O2(g)===2N2O(g) ΔH=+163 kJ·mol-1', ' Ag(s)+[img=11x33]17e0a705ae7bd6c.jpg[/img]Cl2(g)===AgCl(s) ΔH=-127 kJ·mol-1', ' HgO(s)===Hg(l)+[img=11x33]17e0a705ae7bd6c.jpg[/img]()O2(g) ΔH=+91 kJ·mol-1', ' H2O2(l)===[img=11x33]17e0a705ae7bd6c.jpg[/img]O2(g)+H2O(l) ΔH=-98 kJ·mol-1'], 'type': 102}