含11.2gKOH的稀溶液与1L0.12mol/L的H2SO4溶液反应放出11.46kJ的热量。该反应的热化学方程式是 ( )
A.KOH(aq)+1/2H2SO4(aq)==1/2K2SO4(aq)+H2O(l); △H=-11.46 kJ/mol |
B.2KOH(aq)+ H2SO4(aq)==K2SO4(aq)+2H2O(g);△H=-114.6 kJ/mol |
C.2KOH(aq)+ H2SO4(aq)==K2SO4(aq)+2H2O(l);△H=+114.6 kJ/mol |
D.KOH(aq)+1/2H2SO4(aq)==1/2K2SO4(aq)+H2O(l);△H=-57.3 kJ/mol |