P4s6H2g8O2g的精选

问题详情：*及其化合物在化工厂生产中有广泛应用。－1(1)已知：①P4(s)+6H2(g)+8O2(g)     4H3PO4(s)  △H1=akJ·mol1                           －1②H2(g)+O2(g)   H2O(1)  △H2=...