Standard enthalpy change of neutralisation
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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 4.12. ∆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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