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the amount of heat (energy) transferred to or from a reaction
this is equal to the enthalpy change (ΔH) of a reaction |
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ΔH is positive, heat is added to the reaction |
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ΔH is negative, heat is released by the reaction |
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the statement that the enthalpy changes for reactions are additive |
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ΔHrxn = ΣνprodΔH°f(prod) – ΣνreactΔH°f(react)
I think ν = stoichiometric coeffecients |
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ΔHrxn(gas) = (bonds broken) – (bonds formed) |
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Gibbs free energy change (ΔG) |
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a measure of spontaneity for a reaction |
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the equation for Gibbs free energy change (ΔG) |
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when ΔG = +, the rxn spontaneity of the rxn is... |
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non-spontaneous in forward direction
I think this means spontaneous in reverse direction |
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when ΔG = -, the rxn spontaneity of the rxn is... |
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spontaneous in forward direction |
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when ΔG = 0, the rxn spontaneity of the rxn is... |
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equilibrium (neither forward nor reverse reaction) |
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thermodynamics of equilibrium |
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relationship between ΔG and Q and K |
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equation for the thermodynamics of equilibrium |
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"ΔG = ΔG° + RTlnQ" where "ΔG° = –RTlnK" |
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