Standard enthalpy change of neutralisation

Standard enthalpy change of neutralisation

The standard enthalpy change of neutralisation is the change in enthalpy that occurs when an acid and base undergo a neutralisation reaction to form one mole of water under standard conditions (298 K and 1 atm), i.e. react to produce water and a salt. It is a special case of the standard enthalpy change of reaction.

Equation for working out standard enthalpy of neutralisation:

q = mc∆T

When q is the energy produced by one mole of acid or base in KJ per mole.m is the mass or volume of the solution.c is the thermal capacity of water normally 4.18.∆T is the temperature change of the reaction of one mole of acid or base, with one mole of acid or base.

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