445℃时,Ag2O(s)分解压力为20974kPa,该分解反应Ag2O(s)=2Ag(s)+1/2O2(g)的=_______

445℃时,Ag2O(s)分解压力为20974kPa,该分解反应Ag2O(s)=2Ag(s)+1/2O2(g)的=____________kJ•mol-1
【正确答案】:-15.92