I know i have to look at the reaction enthalpy. Normally for diluting sulphuric acid the following reactions occurs:
(1) H2SO4 + H2O --> H+ HSO4- +H2O
(2) HSO4- + H2O --> H+ SO42- +H2O
But in the above situation there is a shortage for the watermolecule
Does only the first reaction (1) take place? and therefore only heat is released by the first reaction?