Total internal energy calculation(Utotal)

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Marni Kahn 1A
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Total internal energy calculation(Utotal)

Postby Marni Kahn 1A » Tue Feb 04, 2020 9:13 am

is the equation U(total)=(3/2)n*R*T only used when there has been an isothermal reversible expansion reaction?
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Harry Zhang 1B
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Re: Total internal energy calculation(Utotal)

Postby Harry Zhang 1B » Tue Feb 04, 2020 10:36 am

The change of internal energy of a system is zero in isothermal expansion. This formula is related to the equipartition theory and can be used to calculate the internal energy of molecules or atoms by taking into account rotational and translational energy.
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