2H2Og2HIg的精选

问题详情：Bunsen热化学循环制*工艺由下列三个反应组成：①SO2(g)＋I2(g)＋2H2O(g)===2HI(g)＋H2SO4(l)ΔH＝akJ·mol－1②2H2SO4(l)===2H2O(g)＋2SO2(g)＋O2(g)ΔH＝bkJ·mol－1③2HI(g)===H2(g)＋I2(g)ΔH＝ckJ·mol－1则：2H2O(g)===2H2(g)＋O2(g)...