在真空的在真空容器中放入nh4hs中放叺固态的NH4HS于25℃下分解为NH3(g)与H2S(g),平衡时在真空容器中放入nh4hs内的压力为66.66kPa(1)当放入NH4HS时在真空容器中放入nh4hs内已有39.99kPa的H2S(g),求平衡时在真空容器中放入nh4hs中嘚压力;(2)在真空容器中放入nh4hs内原有6.666kPa的NH3(g)问需加多大压力的H2S,才能形成NH4HS