CHEM2 AQA AS DEFINITIONS

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  • Created by: kyle
  • Created on: 09-05-12 14:52

Standard enthalpy of combustion - The enthalpy change, under standard conditions, when 1 mol of a substance is completely burned in oxygen, with all reactants and products in their standard states.

Standard enthalpy of formation - The enthalpy change, under standard conditions, when 1 mol of a compound is formed from its elements with all reactants and products in their standard states.

First Law of Thermodynamics - states that energy can be neither created nor destroyed, but can be converted from one form into another.

Hess's Law - states that the enthalpy change of a reaction depends only on the initial and final states of the reaction and…

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