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Standard Enthalpy Change of Neutralisation
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High Quality Content by WIKIPEDIA articles! 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. Equations for working out standard enthalpy of neutralisation: Q = mc T Where: Q is the heat energy liberated m is the mass of the solution. c is the specific heat capacity of the solution. T is the temperature change of the reaction between an acid and a base. From this the standard enthalpy change ( H) can be calculated by dividing the negative of Q by the moles of the limiting reactant, usually moles of H+ ions. The standard enthalpy change of neutralisation for a strong acid and base is -57.3 kJ/mol. h=-q/n in kJmol-1 The standard enthalpy of mineral acids is far greater than that of organic acids. This is because strong acids ionise completely and yet organic acids ionise partially.
Weitere Informationen
- Allgemeine Informationen
- GTIN 09786131072000
- Editor Lambert M. Surhone, Miriam T. Timpledon, Susan F. Marseken
- Genre Chemie
- EAN 9786131072000
- Format Fachbuch
- Titel Standard Enthalpy Change of Neutralisation
- Herausgeber Betascript Publishing
- Anzahl Seiten 88
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