已知:Cu(s)+2H+(aq)===Cu2+(aq)+H2(g) ΔH=+64.39kJ·mol-1,2H2...
问题详情:已知:Cu(s)+2H+(aq)===Cu2+(aq)+H2(g)ΔH=+64.39kJ·mol-1,2H2O2(l)===2H2O(l)+O2(g)ΔH=-196.46kJ·mol-1,H2(g)+O2(g)===H2O(l)ΔH=-285.84kJ·mol-1。在H2SO4溶液中,Cu与H2O2反应生成Cu2+(aq)和H2O(l)的反应热ΔH等于()A.-319.6...