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Topic: Confused about the derivative of the mole fraction  (Read 2738 times)

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Offline roldy

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Confused about the derivative of the mole fraction
« on: September 29, 2011, 03:49:29 PM »
Can someone explain to me why dNi/N is not equal to dXi when Ni/N=Xi? Does it have to do with the partial pressures? Could someone show by a simple example why this is not true. I could not find an explanation in the book or online that I could understand. Thank you.
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Offline SABRY

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Re: Confused about the derivative of the mole fraction
« Reply #1 on: October 11, 2011, 11:30:27 PM »
The relationship is valid if and only if N = constant. For chemical reaction N = may vary according to the chemical equation.

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