Total mass of solution = 100 + 100 = 200g
Q = Total heat produced = Mass of solution x specific heat x (T2
- T1)
                                     Â
= 200 x 1 x (35.5 - 22.5)
                                     Â
= 200x13 = 2600cal
Enthalpy of neutralisation = (Q/V)1000(1/x)
Q = Heat Produced = 2600cal
V =Volume of acid or base = 100ml
x = normality of acid or base = 2N (because normality = molarity
for monobasic acid or monoacidic base)
Enthalpy of neutralisation = (2600/100)1000(1/2) = 13000cal =
13.0kCal
Since heat is liberated heat of neuralisation should be
negative.
Heat of neutralisation = - 13.0 kcal
