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Topic: Need help with simple Entropy mathematical question  (Read 3321 times)

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Offline Chaste

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Need help with simple Entropy mathematical question
« on: April 30, 2009, 10:18:54 PM »
Calculate the entropy change in the surroundings when 1 mol of N2O4(g) is formed from 2 mol of NO2(g) under standard conditions at 298K.

Which formula do we use? ???
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Offline Chaste

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Re: Need help with simple Entropy mathematical question
« Reply #1 on: April 30, 2009, 10:25:18 PM »
Ah. It's alright. I figured it out using dS = dq/T but will need to find the enthalpy for the above reaction from experimental data values.
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