Question

In the reactionHCl + NaOH --> NaCl + H2O + x calH2SO4 + 2NaOH --> Na2SO4 + 2H2O + y cal(1) x = y(2) x = 2y(3) x = y/2(4) x2 = y

Answer 1

The reaction of HCl with NaOH involves reaction of one mole of ions while reaction of H2SO4 with NaOH involves 2 moles. Enthalpy change for the second reaction is twice that of the first. So ans is y/2 = x