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    Don't spontaneous processes occur on it's own at room temperature pressure (and without any outside force)? So why is an endothermic reaction with change in entropy that's positive spontaneous at high temperatures? Isn't that going against the definition of a spontaneous reaction, as there should be no outside forces causing this?
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    (Original post by celina10)
    Don't spontaneous processes occur on it's own at room temperature pressure (and without any outside force)? So why is an endothermic reaction with change in entropy that's positive spontaneous at high temperatures? Isn't that going against the definition of a spontaneous reaction, as there should be no outside forces causing this?
    Spontaneous processes are able to occur, they do not always do so because of kinetic control (high activation energy barrier)

    What 'outside force' are you talking about?

    A spontaneous process is thermodynamically possible, that's all ...
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    (Original post by charco)
    Spontaneous processes are able to occur, they do not always do so because of kinetic control (high activation energy barrier)

    What 'outside force' are you talking about?

    A spontaneous process is thermodynamically possible, that's all ...
    Dunno , I guess this just confused me: 'a spontaneous process is capable of proceeding in a given direction, as written or described, without needing to be driven by an outside source of energy'.

    http://en.wikipedia.org/wiki/Spontaneous_process
 
 
 
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