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题型:综合题 题类:常考题 难易度:普通
电解原理d 40
Mg(s)+H2(g)═MgH2(s)△H1=﹣74.5kJ•mol﹣1
Mg2Ni(s)+2H2(g)═Mg2NiH4(s)△H2=﹣64.4kJ•mol﹣1
Mg2Ni(s)+2MgH2(s)═2Mg(s)+Mg2NiH4(s)△H3
则△H3=kJ•mol﹣1 .
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