Question

What is isothermal expansion

Answer 1

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An isothermal process is a change of a system, in which the temperature remains constant: ΔT =0. ... In other words, in an isothermal process, the value ΔT = 0 and therefore the change in internal energy ΔU = 0 (only for an ideal gas) but Q ≠ 0, while in an adiabatic process, ΔT ≠ 0 but Q = 0.

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Answer 2

Explanation:

An isothermal process is a change of a system, in which the temperature remains constant: ΔT =0. ... In other words, in an isothermal process, the value ΔT = 0 and therefore the change in internal energy ΔU = 0 (only for an ideal gas) but Q ≠ 0, while in an adiabatic process, ΔT ≠ 0 but Q = 0.