What is the definition of Standard Enthalpy Change of Reaction?
the enthalpy change when a reaction occurs in the molar quantities shown in the chemical equation under standard conditions with all reactants and products inn their standard states
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What is the definition of Standard Enthalpy Change of Formation?
the enthalpy change when 1 mole of a compound is formed from its elements in their standards states under standard conditions
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What is the definition of Standard Enthalpy Change of Neutralisation?
the enthalpy change when solutions of an acid and an alkali react together to form 1 mole of water under standard conditions
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What is the defintion of Standard Enthalpy Change of Combustion?
the enthalpy change when 1 mole of a substance is completely burned in oxygen under standard conditions with all reactants and products in their standard states
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What is enthalpy change?
the heat energy transferred in a reaction at constant pressure
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what are the standard conditions?
100kPa (1atm) pressure and a temperature of 298K
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What is the formula for enthalpy change?
q(heat)=mass X C(specific heat capacity) X change in temp
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What is Hess's Law?
the total enthalpy change of a reaction is always the same, no matter what route is taken
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Other cards in this set
Card 2
Front
What is the definition of Standard Enthalpy Change of Formation?
Back
the enthalpy change when 1 mole of a compound is formed from its elements in their standards states under standard conditions
Card 3
Front
What is the definition of Standard Enthalpy Change of Neutralisation?
Back
Card 4
Front
What is the defintion of Standard Enthalpy Change of Combustion?
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