Chemistry · A-Level · AQA · AQA A-level Chemistry - (7405) · Specification point · 3.1.4.1 · Physical chemistry · Energetics
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3.1.4.1 Enthalpy change
| Content | Opportunities for skills development |
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Reactions can be endothermic or exothermic. Enthalpy change (∆H) is the heat energy change measured under conditions of constant pressure. Standard enthalpy changes refer to standard conditions, ie 100 kPa and a stated temperature (eg ). Students should be able to: |
define standard enthalpy of combustion ()
define standard enthalpy of formation ().