Chemistry energetics terminology
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5 Terms
What is Enthalpy change?
Heat energy change at a constant pressure under standard conditions
What are standard conditions?
Standards states at room temperature
100kPa
298K
What is mean bond Enthalpy?
the average amount of energy required to break one mole of a specific covalent bond, measured in the gas phase, calculated across a range of different chemical compounds
Define standard Enthalpy of formation
The Enthalpy change when 1 mole of a compound is formed form its constitute elements in standard conditions with reactants and products in standard state
Defund standard Enthalpy of combustion
The Enthalpy change when 1 mole of a substance is burnt completely in oxygen under standard conditions and all reactants and products in standard state