Which thermodynamic process takes place at a constant temperature so that the internal energy of a system remains unchanged?

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Felix

Physics

6 December, 14:13

Which thermodynamic process takes place at a constant temperature so that the internal energy of a system remains unchanged?

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Gianni Valdez · Answer 1

Isothermal process is a change of a system, in which the temperature remains constant: Δ T = 0. So, if the thermodynamic process takes place at a constant temperature so that the internal energy of a system remains unchanged than this process is isothermal.

The Joule's second Law states that the internal energy of a fixed amount of an ideal gas depends only on its temperature. So, isothermal processes are of great interest for ideal gasses.