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Topic: Please help me with this thermodynamics quesiton  (Read 3382 times)

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Offline lutesium

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Please help me with this thermodynamics quesiton
« on: January 25, 2011, 01:16:12 PM »

Lorsqu’un système fermé constitué par 10 mol de dioxyde de carbone CO2, à l’état gaz,  reçoit, à 298 K sous 1 bar, 1855 J, la température augmente de 5 K.  Calculer la capacité calorifique molaire à pression constante de CO2 (notée Cp,m,g (298)). On suppose que Cp,m,g (298) est  constante dans l’intervalle de température considéré.   

Translation:

Imagine a closed system constituted from 10 moles of CO2, in its gas form, at 298K under 1 bar, receives 1855 J, the temperature rises 5 K. Calculate the molar calorific capacity of CO2 (note Cp,m,g (298)) at constant pressure. We consider that Cp,m,g (298) is constant in the interval of the considered temperature.

Offline DevaDevil

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Re: Please help me with this thermodynamics quesiton
« Reply #1 on: January 25, 2011, 04:11:22 PM »
what are the units of Cp,m,g ?

Offline lutesium

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Re: Please help me with this thermodynamics quesiton
« Reply #2 on: January 26, 2011, 01:40:26 AM »
Its indicated at the above question!!!

I need urgent helpz!!

Thanks

Offline rabolisk

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Re: Please help me with this thermodynamics quesiton
« Reply #3 on: January 26, 2011, 02:47:15 AM »
You need to show some attempt or reasoning before you expect help.

Offline DevaDevil

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Re: Please help me with this thermodynamics quesiton
« Reply #4 on: January 26, 2011, 11:18:12 AM »
Its indicated at the above question!!!


and I am giving you the exact thing you need to do this question:

in what units is Cp,m,g expressed? Then you know which numbers you have to use to calculate it.

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