已知反应在298.15K时；液体溴在298.15K时的蒸气压为28.4kPa，求298.15K时反应的平衡常数。

已知下列反应在740K时，若在该温度下，密闭容器中将1.0molAg₂S还原为Ag，试计算最少需用H₂的物质的量。

已知空气中CO₂的分压约为3.04×10^-2kPa，试从热力学分析A9₂CO₃(S)能否在大气中稳定存在?

Silver oxide，Ag₂O，can decompose into its elements，Ag(S)and O₂(g)．(a)Write a balanced equation for this decomposition reaction．(b)Calculate theat 298K for the reaction．(c)Suppose Ag₂O is decomposed at 298K in a closed container according to the reaction in part(a)．What will be the pressure of O₂(g)at equilibrium?(d)Suppose Ag₂O is decomposed at 573K in a closed container according to the reaction in part(a)．What will be the p ressure of O₂(g)at equilibrium?

已知分解1 mol H2O2放出热量98 kJ。在含少量I－的溶液中，H2O2分解的机理为

H2O2＋I－―→H2O＋IO－ 慢 H2O2＋IO－―→H2O＋O2＋I－ 快

下列有关该反应的说法正确的是( )

A．反应速率与I－浓度有关

B．IO－是该反应的催化剂

C．当反应放出98 kJ的热量时会生成1 mol O2

D．v(H2O2)＝v(H2O)＝v(O2)