the enthalpy change when ONE MOLE OF A COMPOUND is formed FROM ITS ELEMENTS under standard conditions with both the REACTANTS AND PRODUCTS in their STANDARD STATES
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Enthalpy of combustion
the enthalpy change when ONE MOLE OF A SUBSTANCE is completely burnt in oxygen UNDER STANDARD CONDITIONS with both REACTANTS AND PRODUCTS in their STANDARD STATES
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Hess' Law
an enthalpy change for a reaction is the same regardless of the route taken, provided the initial and final states are the same
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Change in heat enthalpy =
sum energy of bonds broken - sum energy of bonds formed
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Exothermic
minus energy, energy is released to the surroundings
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Endothermic
positive energy, energy
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Other cards in this set
Card 2
Front
the enthalpy change when ONE MOLE OF A SUBSTANCE is completely burnt in oxygen UNDER STANDARD CONDITIONS with both REACTANTS AND PRODUCTS in their STANDARD STATES
Back
Enthalpy of combustion
Card 3
Front
an enthalpy change for a reaction is the same regardless of the route taken, provided the initial and final states are the same
Back
Card 4
Front
sum energy of bonds broken - sum energy of bonds formed
Back
Card 5
Front
minus energy, energy is released to the surroundings
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