enthalpy change 0.0 / 5 ? ChemistryEnthalpyASAQA Created by: JaderoseCreated on: 15-04-14 12:39 explain an exothermic reaction and give an example give out energy an example is combustion for a fuel like methane 1 of 8 explain endothermic give an example they absorb energy from surroundings for example thermal decomposition calcium carbonate 2 of 8 what are the standard conditions 298k and 100kpa/ 1atm 3 of 8 standard enthalpy change of reaction is the enthalpy change when the reaction occurs in molar quantities shown in the chemical equation under standard conditions in their standard states 4 of 8 standard enthalpy of formation is the enthalpy change when 1 mole of a compound is formed from its elements in their standard states under standard conditions 5 of 8 standard enthalpy of combustion is the enthalpy change when 1 mole of a substance is completely burnt in excess oxygen under standard conditions 6 of 8 standard enthalpy of neutralisation is the enthalpy change when 1 mole of water is formed from the neutralisation of an acid with excess base under standard conditions 7 of 8 standard enthalpy change of atomisation is the enthalpy change when 1 mole of an element in its standard state is converted to a gaseous atom 8 of 8
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