论文部分内容阅读
一、“三行式”思想例1利用催化氧化反应将SO2转化为SO3是工业上生产硫酸的关键步骤。已知:2SO2(g)+O2(g)幑幐2SO3(g),ΔH=-196 kJ·mol-1。(1)某温度下该反应的平衡常数K=10/3,若在此温度下,向100 L的恒容密闭容器中,充入3.0 mol SO2(g)、16.0 mol O2(g)和3.0 mol SO3(g),则反应开始时v(正)v(逆)(填“<”、“>”或“=”)。
First, the “three lines ” thinking Example 1 The use of catalytic oxidation of SO2 into SO3 is the industrial production of sulfuric acid key steps. It is known that 2SO2 (g) + O2 (g) 幑 幐 2SO3 (g), ΔH = -196 kJ · mol-1. (1) The equilibrium constant K = 10/3 at a certain temperature. If a constant volume 100 L sealed container is filled with 3.0 mol SO2 (g), 16.0 mol O2 (g) and 3.0 mol SO3 (g), v (positive) v (inverse) at the beginning of the reaction (fill in “”, “> ” or “= ”).