反应2HgO(s)＝2Hg(g)+O2(g)在101325Pa、分解温度时的分压p(Hg)等于

反应2HgO(s)＝2Hg(g)+O2(g)在101325Pa、分解温度时的分压p(Hg)等于
A.101.325kPa
B.(101.325/2)kPa
C.(101.325/3)kPa
D.(2/3)×101.325kPa
正确答案：(2/3)×101.325kPa