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### Isothermally and Reversibly

Posted: Mon Jan 25, 2016 5:57 pm
When a reaction is isothermal and reversible why is the internal energy 0? When a reaction is just reversible, does internal energy equal 0 as well?

### Re: Isothermally and Reversibly

Posted: Mon Jan 25, 2016 10:42 pm
Hi,

Remember internal energy change $\Delta U = (3/2) nR\Delta T$ so when temp does not change Internal energy does not change. No Internal energy change is not 0 for a reversible process