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    Peacock1414's Avatar
    Peacock1414 Posts: 2, Reputation: 1
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    #1

    Jun 2, 2010, 04:04 PM
    What is entropy defined as?
    Is dealing with the amount of energy required to initiate a reaction?
    Unknown008's Avatar
    Unknown008 Posts: 8,076, Reputation: 723
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    #2

    Jun 3, 2010, 03:36 AM

    The energy required to initiate a reaction is called activation energy not entropy.

    We can say that the entropy of a mixture is how stable it is. The more difficult it is to separate the constituents of a mixture, the more entropy it contains.
    poeticmelody's Avatar
    poeticmelody Posts: 23, Reputation: 8
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    #3

    Jun 4, 2010, 10:23 AM

    Enthalpy (H) is a thermodynamic function of a system, equivalent to the sum of the internal energy of the system plus the product of its volume multiplied by the pressure exerted on it by its surroundings. :)
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