Answer
Isothermal processess occur at constant T.
Work Step by Step
Isothermal processess occur at constant T. Because the process is reversible, $q=q{rev}$ and $w=w_{max}$.
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.